What Is Resin Catalyst?
A catalyst is used in conjunction with a two-part polyurethane resin to accelerate the curing process and ensure you are provided with an even and consistent cure. Our accelerator should only be added to un-catalysed resin bound kits to prevent any issues with the resin curing too quick. The BoundFast catalyst allows experienced installers to have complete control of their resin bound installations by speeding up the curing process to meet the needs of each project. Typically, an accelerator is used on resin bound gravel installations when the temperature falls between 10-20°C and the exact temperature on the day decides exactly how much catalyst you need to add to correctly speed up the curing time.
How To Mix Resin and Catalyst
To use the catalyst, simply add to the part A component of the resin before mixing at levels of between 0.01% – 0.5% by weight. Below you will find a table displaying the correct amount required for your resin binder size and the temperature. Ensure you do follow the recommended levels of accelerator as with too little catalyst, the installed material may take much longer to cure whereas, with too much catalyst, it will cure very quickly and can be very difficult to trowel your resin bound resulting in an unfinished surface.
Resin To Catalyst Ratios
|Air Temp (°C)||PermaBound UVR 6.5kg||PermaBound UVR 7kg||PermaBound UVR+ 7.5kg|
|17.5°C||4.4ml per kit||4.8ml per kit||5.1ml per kit|
|15.0°C||9.8ml per kit||10.6ml per kit||11.3ml per kit|
|12.5°C||16.6ml per kit||17.9ml per kit||19.2ml per kit|
|10.0°C||29.3ml per kit||31.6ml per kit||33.8ml per kit|
For more information on our BoundFast catalyst or advice on an upcoming project, please do not hesitate to contact a member of our knowledgeable and friendly team. You can call us on 01246 418144 or LiveChat with us during office hours. Outside of these times leave us a message and we will reply upon our return.