Adhesives and sealants chemicals and ingredients

Each technology has its own chemistry. Hot melts combine polymers such as EVA or polyolefins with tackifying resins and waxes, pressure-sensitive adhesives use acrylic or rubber polymers with tackifiers, structural adhesives use epoxy, polyurethane or acrylic chemistry with hardeners, and sealants rely on moisture-curing silicones, polyurethanes or silane-terminated polymers with fillers, plasticizers and adhesion promoters.

Regulatory topics include free diisocyanate content and the training requirement for professional users in the EU, solvent and VOC limits, formaldehyde emissions from wood adhesives, food contact compliance for packaging adhesives and restrictions on certain plasticizers and tin catalysts. Many formulators are switching to tin-free catalysts and to bio-based or recycled raw materials. When you post a request, describe the adhesive technology, substrates, curing conditions and performance target, and give the grade you use today. Suppliers can then recommend a matching raw material, provide a technical data sheet and send samples for testing on your own substrates and equipment.