The Universal Selection Source: Coatings Ingredients

by SpecialChem

Bluesil™ BP 9821

Technical DataSheet | Supplied by Bluestar Silicones

Bluesil™ BP 9821 by Bluestar Silicones is an aqueous APE-free polymethylsiloxane resin emulsion. Combined with acrylic or styrene-acrylic dispersions, BLUESIL BP 9821 enables the formulation of coatings with high water vapor permeability and high liquid water resistance, notably below the cPVC. In matt systems with high porosity (PVC > cPVC), BLUESIL BP 9821 allows an excellent water repellency (the use of a silicone additive is not necessary) and high wet scrub resistance. This emulsion is designed for use in facade coatings, to optimize the balance between water repellency and water vapor permeability. Typically, the recommended ratio is between 10 and 50% relative to the total binder (calculated dry/dry).

Bluesil™ BP 9821 Product details

Product Type
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Chemical Composition
Physical Form
Milky white
Product Status
Geographical Availability
Applications/ Recommended for
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Bluesil™ BP 9821 Properties


Value & Unit
Test Condition
Test Method
Viscosity @ 25°C
xxxxx mPas
Specific gravity @ 25°C
Dry content
xx %
Last edited Dec 16, 2016
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