Infocenter
FAQ
Polyester and vinyl ester resins
The light-curing synthetic resins used are made of unsaturated polyester (UP) or vinyl ester resin (VE) blended with a special UV light initiator that triggers the curing process.
For liners with a wall thickness of more than 17.5 mm, the light-curing resin is mixed with peroxide to ensure proper curing on the entire length of the liner by means of a combination of UV light and reaction heat.