Stick, seal and worry no more!

Stick, seal and worry no more!

Friday, 15 June, 2018

Comindex is marketing STP (silane-terminated) polymers, one of the latest technological innovations in the world of high performance adhesives and sealants.

STP or silane-terminated polymers have the following chemical structure:

The active end groups are siloxane groups that essentially endow the polymer with chemical reactivity and adhesive properties.

The central segment of the polymer is formed by polyether chains that provide key physical properties such as elasticity and help to enhance the adhesive performance of the end product.

The subsequent curing of the polymer is carried out by means of moisture reaction and a process of chain polycondensation.

STP polymers from Risun Polymer, an Asian manufacturer that produces these specialist products distributed by Comindex, afford the following performance enhancements compared to polyurethane-based (PU) polymers

The absence of isocyanates and solvents in their formulation makes them safe, environmentally-friendly products
They require a very small amount of catalyst, whether or not it incorporates tin
They have excellent weather resistance, excellent chemical resistance and remarkable resistance to yellowing caused by UV radiation
Fast curing and, unlike PU polymers, do not produce blistering
They are tack-free products
They are non-leachable products on outdoor applications
They have excellent direct adhesion to aluminium surfaces without the need for a primer
They are repaintable

The key applications for STP polymers include:

Construction
Home (domestic use)
Industry

For further information about these products, please contact our Technical Sales Advisers.

URL: http://en.risunpolymer.com

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