The time- and cost-saving solution for solvent-free floor bonding

Embark on new paths with DINITROL 785 A/B

The demands on adhesive joints are increasing – on the
one hand, the use of ingredients that could be hazardous
or even harmful for the processor and the environment (sol-
vent balances) must be reduced and at the same time costs
must be kept to a minimum. Of course, there is no one-size-
fits-all package, but in this article we will present a product
that meets almost all requirements, making it one of the
most optimal solutions.

The Problem

During a visit to a customer who is involved in the manufacture of rail vehicles – specifically local trains – we were asked about the following problem:

The customer was looking for an adhesive to bond flooring to the aluminium floor of local trains. The adhesive used must not contain
solvents.

In summary, the following product requirements were communicated to us:

• Solvent-free
• Processing location for interior fittingwithout extraction option
• The customer wants only two longitudinal joints and no transverse joints in thevehicle, i.e. 25 metres (lane width 1.2 m) glued in one piece
• The surface is made of rubber, the base plate is made of aluminium
• The floor should be quickly walkable again so that work can continue in the next shift
• The covering should adhere well, but be removable for repairs
• No “visual impression”, i.e. no visible peaks and troughs, when viewed along the entire floor
• No use of solvent-based activators and primers (excessive exposure)

Until now, a solvent-based contact adhesive was used, which is applied to both joining parts and must be joined and pressed on after flash-off. The first contact pressure is key here and correction is no longer possible after pressing.

You can download the complete white paper here as a PDF: