Bonding solutions

The customer also required a high temperature resistance, above standard hotmelt EVA specifications of 60⁰C to 80⁰C. 

Techsil 6811-43 has a softening point of 150°C and a temperature resistance of 110°C. It also has a flexible low temperature of -30°C (TG). Extended tests proved successful. As the vehicle build increased, a faster assembly process was required. This meant more operators in the production cell. The customer chose to install bulk melter tanks with dual hoses. Techsil was asked for a bulk version of the Techsil 6811-43 and Techsil HM27399 was developed. This bulk grade has all the same specifications and passed all tests. Both forms are now used on the line.

Techsil also offers a range of double- and single-sided tapes and foams. The same customer was looking for a double-sided tape to assist in the assembly of an armrest. They required a double-sided hand tearable tape to hold the foam filler to the armrest base whilst they assembled the leather cover over the foam. D3051 is a double sided tissue tape with an acrylic adhesive. Being hand tearable means it is quick and easy to use on the line. The acrylic adhesive gives enough tack to hold the foam whilst the cover is fitted.