One-component latent curing polyurethane co-drierwcat-wq01
Improve the stability of the latent solid system and speed up the material drying).
Description of the trait
Colorless transparent liquid, chromaticity (Fe-CO2), density 1161 (g ml, 25 ) viscosity 55 30 (mpa.)S, 25) has a special odor, soluble in polyether polyols, plasticizers and other commonly used polyurethane raw materials;It does not contain restricted heavy metals, polycyclic aromatic hydrocarbons, phthalate plasticizers and other ingredients, and complies with international and domestic general environmental protection regulations.
Unique performance
For one-component latent curing polyurethane systems (coatings) with latent curing agentsadhesivesLaminating glueElastomers, etc.), which rely on the principle of cross-linking curing reaction between water in the environment and isocyanate groups and latent curing agents in the colloid, can significantly improve the storage stability of one-component latent curing systems. It is generally recommended to work with a moisture-curing universal catalyst such as WCAT-WS8ws12t-12and so on, which can greatly speed up the surface drying and drying speed after material paving. The features are summarized as follows:
The shelf life is greatly extended and the viscosity remains low. WCAT-WQ01 is inert when the material remains sealed, does not promote the reaction of latent curing agent and isocyanate group, and the material is stable in storage.
The table is dry and fast. During the curing process, WCAT-WQ01 shows obvious effect of promoting the preferential reaction of isocyanate and latent curing agent, effectively promoting the complete reaction of latent curing agent, but at the same time does not affect the reaction rate of isocyanate and water, and accelerates surface drying.
It is recommended withwcat-ws8ws12and other catalysts can be used in combination to achieve the ideal surface solid effect and avoid the phenomenon of bubble bulging;It is not recommended to use it alone.
The material is environmentally friendly. It does not contain restricted heavy metals, polycyclic aromatic hydrocarbons, phthalate plasticizers and other ingredients.
Directions for use
The timing of addition is to add MDI TDI and polyether polyol prepolymerization reaction completely, and it is not recommended to premix polyether polyol in advance. The usage is 003-0.1%, due to the difference in packaging equipment and process of the user, it is recommended that the storage stability test must be carried out first.
This product has some water absorption, never expose to air to prevent water absorption. After normal use, it is necessary to close the mouth of the can immediately and avoid leaving it open.
Specification storage
HDPE plastic drum, 25 200kg drum. Store in a dry and cool warehouse, away from sunlight and rain. Shelf life 12 months unopened.