BYK® -349

BYK® -349 by BYK is a polyether-modified siloxane-based surfactant. It causes a considerable reduction in the surface tension in aqueous adhesive systems thereby improves the wetting of critical substrates. It does not increase the surface slip.

• Suitable for sealants and systems that do not contain co-solvents.
• Complies with REACH, EU regulation No. 10/2011 and BfR XIV & BfR XXXVI.
• Recommended dosage level is 0.05-0.5% based upon total formulation.
• BYK® -349 has a shelf life of 36 months.
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