TA4605, TA4610, TA4611, TA4631, TA4550/TA4551 acrylate adhesives for untreated polyolefins (PP, PE) and polyamide

Technical specifications

Specifications are taken from the manufacturer’s technical documentation. Updated 11/10/2026.

Description

Polyolefins have very low surface energy, so ordinary adhesives do not wet them, and without flame, plasma, corona discharge or primer treatment the seam peels. These adhesives bond untreated polyolefins as well as rubber, PET, polycarbonate, composites and metals, and the parts are only cleaned of dust before application. The TA4605 has a mixed viscosity of 125 000 mPa·s, fixture after 5–10 minutes and 5–8 MPa on polypropylene. The TA4610 is more viscous (210 000 mPa·s), fixture 12–15 minutes, holds well on vertical surfaces and fills gaps. The TA4611 is low-viscosity (21 500 mPa·s), 10–16 minutes, 4–6 MPa. The TA4631 is odorless, fixture 12–18 minutes, over 8 MPa, so it is convenient in enclosed spaces. In shear tests the polypropylene itself often fails rather than the seam. Polyamide is bonded with the TA4550 (5–6 minutes, 24–28 MPa) and the TA4551 with delayed setting (25–30 minutes, 23–27 MPa), which are also used for nylon 12 parts on UAVs. The dual cartridges of 50 and 400 ml come with static mixers.

How to choose

Look at viscosity and fixture time. The TA4605 is universal, the TA4610 is thicker for vertical surfaces and large gaps, the TA4611 is liquid for thin seams, and the TA4631 is odorless for enclosed spaces. These adhesives are suitable for PE/PP pipes and fittings, but not for gas. For polyamide take the TA4550 or TA4551, depending on the needed 5–6 or 25–30 minutes. For metals and ordinary plastics it is simpler to use the cyanoacrylate 910, whose fixture takes about 10 s.