50YEARS
Experience behind every idea.
Our team's adhesive expertise brings 50 years of experience into the conversation — connecting chemistry with the realities of production.
OYTI COMPETENCE CENTER
TRUST IN
KNOWLEDGE.
NOT SIZE.
Better bonding starts with a deeper understanding. Of the chemistry. Of the materials. And of your process.
FROM CHEMISTRY TO APPLICATION01—03
Chemistry.
Seen more closely.Explore 43 materials
Seen more closely.Explore 43 materials
01 Understand02 Develop03 Validate
Innovation with substance.
Experience in patent development and collaborative innovation turns technical insight into new approaches to bonding.
Knowledge grows together.
Collaboration with major chemical manufacturers, including joint development and patent work, brings different expertise to the same challenge.
OYTI COMPETENCE CENTER / APPLICATION ADVISOR
Find your bond.
Start with your materials.
Build a combination of two or three materials. Add your technical targets, then explore the process for each bond.
- 01 / MATERIALS
- 02 / SPECIFICATIONS
- 03 / APPLICATION
Enable JavaScript to use the advisor, or email our team with your materials and application requirements.
02 / KNOWLEDGE LIBRARY
Small insights.
Better bonding decisions.
Clear explanations and practical questions to bring to your next material discussion or production trial.
23 guides to explore
MATERIALS · 5 GUIDES
Understand your materials
Surfaces, layer structures and the behaviour of the finished construction.Materials / 04
Know the surface you actually bond
The material name is only the starting point.
MATERIAL STUDY / 01Read beyond the material name.
Inspect the actual side being bonded: its texture, condition and preparation.
A finish changes the interface.
Record coatings, treatments and contamination separately from the base material.
Bring the real surfaces together.
Assess contact and wetting on the actual construction, then examine the separated bond.
Read the guide
Look beyond the label
Coatings, print, release agents, dust and surface treatments can make two apparently similar materials behave differently. Porosity and roughness also affect adhesive distribution and the amount remaining at the interface.
Prepare useful samples
Identify the bonding side and send representative material from production. Include supplier references and any treatment or cleaning steps. Keep an untreated reference where possible and agree preparation with the material and adhesive suppliers.
Build your application briefMaterials / 05
Two materials. Three layers. Separate bonds.
Map the interfaces before choosing the process.
Each interface deserves its own brief.
Review absorbency, contact and loading between the first two layers.
A second bond. A separate evaluation.
Assess the lower interface, then test the complete three-layer construction.
Read the guide
Read the construction
In a foam / nonwoven / carrier stack there are two adjacent interfaces. They may differ in absorbency, flexibility and exposure. One adhesive or application method should not be assumed to suit the complete stack.
Use the adviser
Select materials in their bonding order. Describe any edge joints, wrapping or non-adjacent contact separately. Review each interface and then test the assembled component, including the stresses introduced during manufacture.
Build your application briefMaterials / 09
Latex-free & material-conscious design
Keep the requirement clear and the claim specific.
Explicit requirementSelected gradeComplete construction
Confirm the requirement for the selected adhesive. Latex-free alone does not establish recyclability.
Read the guide
Specify the brief
If latex-free bonding is required, include it explicitly in the material brief and request confirmation for the selected adhesive. Do not infer adhesive composition from terms such as water-based.
Assess the complete construction
Material compatibility is one part of a monomaterial development project. Coatings, additives and the intended recovery process also matter. A latex-free requirement alone does not establish recyclability; assess the finished construction and the relevant recovery route.
Build your application briefMaterials / 19
Porous and closed surfaces
Consider where the adhesive goes.
Watch the bond line.
Check that adhesive remains available at the joining surface.
Check wetting and contact.
A closed surface still needs suitable preparation and adhesive compatibility.
Read the guide
Understand the question
Foams, textiles and papers can absorb adhesive differently from films and rigid carriers. Note whether the adhesive remains available at the joining surface and whether the material is compressed during assembly.
Make the comparison useful
Compare the same material side, preparation and coat weight. Record visible penetration or strike-through, the bond-line feel and the failure appearance. Describe coatings and finishes separately.
Build your application briefMaterials / 20
A flexible bond in a flexible product
Evaluate the assembled component.
Assess bending, compression and recovery on the complete bonded component.
Read the guide
Understand the question
A soft substrate can still develop a noticeable bond line. Assess bending, compression and recovery on the bonded construction rather than using adhesive hardness as the only selection criterion.
Make the comparison useful
Prepare reference and trial assemblies with a repeatable adhesive pattern. Include handling, repeated movement or compression that reflects the product’s use; agree what is considered acceptable.
Build your application briefPROCESS · 5 GUIDES
Shape your bonding process
Application, timing and the transition from samples to production.Process / 01
Open time, setting time & initial hold
Three different moments in the bonding process.
Apply. Then assess the next step.
Record the application conditions and the usable joining window.
Join. Then assess the next step.
Bring the surfaces into contact within the specified process window.
Handle. Then assess the next step.
Confirm sufficient initial hold before the next production step.
Read the guide
Understand the sequence
Open time describes the usable joining window after application. Setting time concerns the development of enough hold for the next production step. Initial hold does not, by itself, describe long-term performance.
What to record
Record the time from application to joining and from joining to handling. Note substrate temperature, adhesive pattern and the pressure applied. Test with the actual production sequence rather than a single isolated time value.
Build your application briefProcess / 06
Bead, dot, spray or coating?
Adhesive placement is part of the design.
A path with purpose.
Assess bead placement, joining time and contact along the path.
Contact where you need it.
Evaluate spacing and distribution across the assembled part.
An area, evenly considered.
Match coverage, material feel and equipment to the application.
A controlled layer.
Review coat weight, uniformity and wetting on the carrier.
Read the guide
Choose the pattern
Beads place adhesive along a path; dots concentrate it at selected points. Spray distributes it over an area, while coating creates a controlled layer on a carrier. Availability depends on the adhesive and equipment.
Balance the variables
Discuss coverage, flexibility, joining pressure and production speed together. Record coat weight and inspect distribution. More adhesive does not automatically solve poor contact or unsuitable joining timing.
Build your application briefProcess / 07
Water-based bonding: manage the process
Bring the adhesive, materials and joining sequence together.
Record the temperature.
Consider the adhesive, substrate and surroundings.
Record the ambient humidity.
Use the grade-specific process when evaluating bond development.
Record the airflow.
Review the drying and joining sequence for the selected system.
Read the guide
Define the route
Water-based systems require a process suited to their specified application and bond-development behaviour. Do not assume every grade uses the same drying, joining or activation sequence.
Control the conditions
Record temperature, humidity, airflow and the absorbency of the materials. Check equipment condition and coverage. For a two-component process, confirm the approved activator and specified feed arrangement; follow the selected product’s instructions.
Build your application briefProcess / 21
Coat weight and consumption
Make comparisons per bonded area or finished part.
Adhesive deposited
kg
AREA × COAT WEIGHT ÷ 1,000100 m² × 25 g/m² = 2.50 kg
Deposited mass only; excludes process losses. Keep wet and dry coat weights separate. Example inputs are not recommendations.
Read the guide
Understand the question
Record the deposited adhesive mass and bonded area. Distinguish the wet application amount from a dry adhesive amount when comparing water-based and hotmelt processes.
Make the comparison useful
Include overspray, start-up losses and scrap when estimating consumption. Use a defined sampling and weighing procedure; compare bond performance as well as material use.
Build your application briefProcess / 22
From bench sample to production line
Keep the important conditions visible.
FROM THE BENCHTo the line.
01Sample02Pilot03Production
Carry the material, process settings and acceptance criteria through every stage.
Read the guide
Understand the question
A hand-made sample and a moving production line may differ in substrate temperature, joining delay, pressure and adhesive distribution. Identify those changes before transferring a laboratory result.
Make the comparison useful
Agree a trial window and acceptance criteria. Record start-up and steady operation separately, retain samples and review performance after the required conditioning period.
Build your application briefTESTING · 11 GUIDES
Measure & interpret
Test principles, laboratory methods and the conditions behind a meaningful result.Testing / 02
Peel: a number needs a test method
Compare like with like, not just the highest value.
EXAMPLE · NOT PRODUCT DATA
N
Example force only. Record specimen width, peel angle and speed before comparing results.
Read the guide
Understand the measurement
A peel test separates bonded materials at a defined angle and speed. Results may be reported as force or force per specimen width. A 90° peel, a 180° peel and a T-peel describe different test arrangements.
What to record
Specify materials, width, angle, speed, conditioning and time after bonding. Record whether separation occurs at the interface, within the adhesive or in the substrate. A torn foam or textile changes how a result should be interpreted.
Build your application briefTesting / 03
Heat resistance in service
Application temperature and service temperature answer different questions.
EXAMPLE · NOT PRODUCT DATA
°C
Example target only. Duration, load and the finished joint determine the required test.
Read the guide
Define the exposure
The temperature used to process an adhesive does not establish the temperature a finished bond can withstand. A meaningful service requirement includes exposure duration, load, joint geometry and the permitted movement or failure criterion.
Build the trial
Distinguish continuous exposure from short peaks. Include temperature cycling or moisture if relevant to use. Ask for testing on the finished construction under the intended load; do not turn a softening-point value into a service guarantee.
Build your application briefTesting / 10
From sample to a useful production trial
Make a trial repeatable before scaling it up.
A CLEAR BRIEF.A useful trial.
0 of 3 preparation points checked
Read the guide
Prepare
Define the finished product, materials and acceptance criteria. Bring representative samples, equipment details and the intended production sequence. Separate must-have targets from preferences.
Evaluate
Record application settings, coat weight, joining time and test conditions. Compare with an agreed reference, including ageing or service exposure where needed. Document both acceptable results and unresolved questions before moving to production.
Build your application briefTesting / 11
Melt viscosity
Flow behaviour at a defined temperature.
FLOW BEHAVIOURTemperature.
Spindle.
Speed.
Spindle.
Speed.
TemperatureSpindlerpm
A viscosity value needs its measurement conditions. The image is a material study, not a flow simulation.
Read the guide
ASTM D3236 · reference listed in our laboratory
What it tells us
The Thermosel setup supports viscosity measurement at a defined temperature. Compare results only with the measurement configuration recorded; a viscosity number without temperature and instrument settings is incomplete.
What to record
Record sample identity, temperature, spindle, rotational speed and equilibration time. Use the result to discuss processing behaviour alongside coating or spray trials.
How to interpret it
Viscosity does not establish adhesion, tack or finished-bond strength.
Discuss the test with our laboratoryAdd your requirements to the brief
Testing / 12
Heat resistance & SAFT
Follow a loaded bond through controlled heat exposure.
EXAMPLE · NOT PRODUCT DATA
°C
Illustrative temperature only. No failure result is calculated; load and heating programme must be defined.
Read the guide
Heating chamber · Heat resistance / SAFT
What it tells us
A heating chamber supports defined heat exposure. In a shear adhesion failure temperature investigation, a loaded joint is heated under an agreed programme and its failure point is recorded.
What to record
Specify bonded area, substrates, load, heating programme, conditioning and failure criterion. Separate a temperature-ramp test from a fixed-temperature holding test.
How to interpret it
A SAFT result is specific to the test arrangement. It is not a continuous service-temperature rating.
Discuss the test with our laboratoryAdd your requirements to the brief
Testing / 13
Ring & Ball softening point
Characterise softening under a defined procedure.
EXAMPLE · NOT PRODUCT DATA
°C
Illustrative range only. Ring & Ball measures softening, not a universal melting point.
Read the guide
ASTM D36 · reference listed in our laboratory
What it tells us
Ring & Ball provides a method-defined softening result for a suitable material. It helps characterise thermal behaviour and compare samples tested under matching conditions.
What to record
Identify the sample and document the preparation and test procedure. Interpret the result together with viscosity and application-specific heat testing.
How to interpret it
Softening point is not the same as melting point, application temperature or the heat resistance of a finished bond.
Discuss the test with our laboratoryAdd your requirements to the brief
Testing / 14
Tensile behaviour
Measure force and displacement under controlled loading.
Start with the geometry.
Record specimen dimensions and initial gauge length.
Control the loading.
Record speed and conditioning; compare matching test arrangements.
Record where it fails.
Keep the failure observation alongside force and displacement.
Read the guide
ZWICK · Tensile testing
What it tells us
The tensile testing machine records force and displacement. Specimen geometry and appropriate fixtures determine the test that can be performed on films, tapes or bonded flexible materials.
What to record
Record specimen dimensions, gauge length, test speed, conditioning and failure location. For a peel or joint test, agree the necessary grips and geometry with the laboratory first.
How to interpret it
Tensile, peel and shear results answer different questions. A force value alone does not make them comparable.
Discuss the test with our laboratoryAdd your requirements to the brief
Testing / 15
Shore hardness
Measure resistance to indentation on a suitable specimen.
ScaleThicknessDwell time
Assess a suitable specimen. Hardness alone does not describe the finished bond or comfort.
Read the guide
Shore durometer · Appropriate scale required
What it tells us
A durometer measures indentation hardness on a suitable specimen. The selected Shore scale and specimen conditions are essential parts of the reported value.
What to record
Record scale, specimen thickness, surface condition, temperature, dwell time and measurement positions. Compare samples using the same preparation and method.
How to interpret it
Shore hardness is not a direct measure of bond strength or the comfort of a complete mattress or upholstered assembly.
Discuss the test with our laboratoryAdd your requirements to the brief
Testing / 16
Loop tack
Compare initial grab through controlled separation force.
EXAMPLE · NOT PRODUCT DATA
N
Illustrative force only. Tack and peel measure different behaviour.
Read the guide
Initial tack · Loop separation force
What it tells us
A controlled loop is brought into contact with a test surface and separated. The measured force supports comparisons of pressure-sensitive adhesive samples under a consistent sequence.
What to record
Record carrier, coating, test surface, loop geometry, contact sequence, speed and conditioning. Keep the test surface preparation consistent.
How to interpret it
Loop tack is not long-term holding power. Pair it with the relevant peel and service-load evaluation.
Discuss the test with our laboratoryAdd your requirements to the brief
Testing / 17
Refractive index
Characterise an optical property of liquid samples.
Liquid sampleTemperatureReference
Control the measurement conditions when comparing an optical property.
Read the guide
Digital refractometer · Liquid samples
What it tells us
A refractometer measures an optical property of a suitable liquid sample. Controlled measurement conditions support consistency checks against an established reference.
What to record
Record sample identity, measurement temperature and the instrument procedure. Check the sample and measuring surface condition before comparison.
How to interpret it
Refractive index alone does not identify a formulation, establish adhesive performance or provide a universal solids-content value.
Discuss the test with our laboratoryAdd your requirements to the brief
Testing / 18
Rolling-ball tack
Compare stopping distance on an adhesive surface.
Ramp → contact → stopping distance
Motion is illustrative. The stopping position is not a tack result.
Read the guide
Initial tack · Rolling distance
What it tells us
The ball travels down an inclined track onto an adhesive surface. Its stopping distance gives a comparative result when the setup and sample preparation are held constant.
What to record
Record ball and ramp configuration, adhesive layer, substrate, conditioning and surface cleanliness. Compare like-for-like samples.
How to interpret it
Do not convert a rolling distance directly into loop-tack or peel force. These tests use different contact and loading conditions.
Discuss the test with our laboratoryAdd your requirements to the brief
TROUBLESHOOTING · 3 GUIDES
Find the cause
Read the failure pattern and investigate variation systematically.Troubleshooting / 08
What does the separated bond tell you?
Look at both surfaces, not just the force reading.
Interface separation
Separation at an adhesive / material boundary. Inspect both sides.
Cohesive separation
Separation within the adhesive. Record adhesive remaining on each surface.
Material tear
Separation within a substrate. Assess what it means for the intended use.
Real specimens can show mixed failure. Appearance guides investigation; it does not prove the cause.
Read the guide
Describe what you see
Separation at a material / adhesive interface, a split within the adhesive and failure of the substrate describe different observations. Photograph both sides and mark the location and direction of loading.
Investigate systematically
Check surface condition, coverage, joining time and pressure against the agreed process. Change one variable at a time and keep a reference sample. A failure appearance can guide investigation but does not prove a single cause.
Build your application briefTroubleshooting / 23
When edges lift after assembly
Check geometry and timing together.
CoverageContactTiming
Mark where lifting begins and when it appears. Compare with the reference process.
Read the guide
Understand the question
Mark where lifting begins and when it becomes visible. A curved or tensioned component can load the edge differently from a flat laboratory specimen.
Make the comparison useful
Compare edge coverage, actual contact, joining time and pressure with the reference process. Record material spring-back and any later heat exposure. Investigate one change at a time rather than assuming that more adhesive will solve the problem.
Build your application briefNo matching guides. Try another term or select “All”.
Test setup and method suitability are agreed for the application. General guidance for application discussions. Processing instructions and performance criteria are confirmed for the selected adhesive and your actual materials.
FROM KNOWLEDGE TO DELIVERY
The right bond.
Ready for your process.
Choosing an adhesive is only the beginning. Storage conditions, handling and delivery help connect the selected grade with its use on your production line.
