PBMA
polymerPBMA (poly(butyl methacrylate)) is an acrylic polymer belonging to the methacrylate family, characterized by a butyl ester side chain that imparts flexibility and moderate stiffness. It is widely used in adhesives, coatings, and flexible films where a balance of rigidity and elongation is required, particularly in pressure-sensitive applications, automotive sealants, and construction materials. Engineers select PBMA over rigid acrylics when impact resistance and strain tolerance are critical; over elastomers when greater modulus and dimensional stability are needed.
pressure-sensitive adhesivesflexible coatingsautomotive sealantsconstruction membranesimpact-resistant filmselastomeric blends
Compliance & Regulations
?UL 94?Conflict Free?RoHS?REACH?TSCA?Prop 65
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Elongation at Break(εf) | — | - | — | — | |
Ultimate Tensile Strength(σUTS) | — | Pa | — | — | |
Young's Modulus(E) | — | Pa | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Glass Transition Temperature(Tg) | — | K | — | — | |
Melting Point / Solidus(Tm) | — | K | — | — | |
Maximum Service Temperature(Tmax) | — | K | — | — |
Verified Unverified Low confidence (<80%) Link to source
| Property | Value | Unit | Conditions | Source | |
|---|---|---|---|---|---|
Refractive Index(n) | — | - | — | — |
Verified Unverified Low confidence (<80%) Link to source
Regulatory Screening
Environmental
Safety & Biocompatibility
RoHS, REACH, and Prop 65 statuses are validated against official substance lists (ECHA SVHC Candidate List, OEHHA Prop 65, RoHS Annex II). Other regulations are estimated from composition and material classification. All screening is a starting point for due diligence — always verify with your supplier before making compliance decisions.