The UK Kink GuideEvidence-led glossaryWhether a material, cleaner, lubricant, barrier, storage surface or other product can contact another without unacceptable chemical, physical or functional change.
Manual claim and limitation notes are shown where an individual source audit is complete. Other evidence-type labels are a publisher aid awaiting source-by-source confirmation.
Products & materials
Illustration created using generative AI; not documentary evidence.
In brief
Compatibility is specific to formulation, concentration, temperature, duration and use. Two products labelled silicone or plastic may behave differently because of additives, coatings and manufacturing. A combination that looks unchanged after one use may still alter strength, elasticity, surface finish, electrical seals or barrier performance over time.
Lubricants, oils, solvents, detergents, disinfectants, adhesives, coatings and neighbouring stored products can soften, swell, stain, craze or embrittle a surface. Metal combinations may corrode in moisture.
A tight accessory can alter load or trap liquid even when its chemistry is compatible. Check the whole assembled use, not just each component separately.
Resistance to swelling, dissolution, extraction, corrosion, stress cracking or other chemical change.
Whether fit, load, friction and movement remain within intended limits when products are combined.
Whether a lubricant or product preserves condom or glove integrity and coverage.
Whether bodily contact is appropriate; this is related to but not proved by material-to-material compatibility.
Start with both manufacturers' current instructions and named material specifications. A vague retailer statement or an online spot-test anecdote cannot establish long-term performance or bodily safety.
If guidance permits a small-area check, inspect for tackiness, colour transfer, odour change, swelling, cracking and loss of function. A passed visual check remains limited evidence and should not override stated incompatibility.
Oil-based products can weaken latex condoms, while compatibility varies for polyurethane, polyisoprene and other barriers. Use a lubricant explicitly suitable for the barrier type and intended activity.
Allergy and chemical compatibility are separate: a product may preserve a barrier yet still irritate a person, or be non-allergenic to one person while degrading equipment.
Stop use if surfaces become tacky, cracked, swollen, cloudy, rough, corroded or difficult to clean. Damage can create retention sites, expose internals or change force and release.
Do not attempt repair with unverified glue, tape or coating on contact surfaces or safety-critical components. Replace the product or obtain manufacturer-approved repair information.
Non-graphic examples
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Continue with independent guidance connecting material compatibility to evidence, consent, safety, uncertainty and practical decisions.
How to assess a product's materials, instructions, fit, recalls and fault options before deciding whether it suits a person.
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