WCAT is a series of catalysts developed for many shortcomings of T-12, such as high toxicity, many bubbles, low activity at low temperature, etc. In the application of one-component moisture-cured polyurethane, WCAT has many characteristics, such as reducing viscosity, reducing bubbles, shortening curing time, greatly improving the curing speed at low temperature and fast curing in winter.
In view of the toxicity of T-12 (dibutyltin dilaurate) and its harm to the environment, the international environmental protection regulations have more and more stricter requirements on its limit, and it have been banned in some fields such as toys and clothing. In the fields where it can still be used, the prepared work should be done in advance for its elimination and substitution. T-12 also has some disadvantages, such as loss of catalytic activity at low temperature, foaming and cracking in application of elastomer.
WCAT is a series of catalysts developed for many shortcomings of T-12, such as high toxicity, many bubbles, low activity at low temperature, etc. In the application of one-component moisture-cured polyurethane, WCAT has many characteristics, such as reducing viscosity, reducing bubbles, shortening curing time, greatly improving the curing speed at low temperature and fast curing in winter.
Curing process curves of T12 and WCAT-WS8 in one component moisture-cured polyurethane
Representative products are as follows, please click the Product Model to see more details.
| Product Type | Product Model | Catalytic Features | Application Field |
| Moisture- cured functional type | WCAT-WS2 | Cure quickly at low temperature, reduce bubbles and cure quickly | Recommended for waterproof coating, silicon PU, hot melt adhesive and coating. WS8 has more efficient characteristics of surface-curing and internal-curing in TDI system. |
| WCAT-WS8 | |||
| WCAT-WH03 | Eco-friendly, no tin element, reduce pinholes on the material surface, and cure quickly at low temperature | Recommended for aromatic moisture-cured systems with high environmental requirements, sealants, hot melt adhesives, etc | |
| WCAT-WP01 | High catalytic activity, fast curing at low temperature | Non yellowing aliphatic moisture-cured system, such as anti-yellowing sealant, adhesive, coating, etc |
