Chlorinated rubber acrylic resin combinations

Chlorinated Rubber-Acrylic Resin Combinations. Physically drying acrylic resins are used for these combinations. These combinations have the same drying rates as normal chlorinated rubber paints (see Section 2.3.2). They have improved flow properties (particularly when applied by pouring techniques), improved weather resistance (chalking and yellowing), and favorable mechanical properties (adhesion and extensibility). Applications include topcoats for ship superstructures and priming coats on galvanized surfaces. 

Atmospheres polluted by oxidising agents, e.g. ozone, chlorine, peroxide, etc. whose great destructive power is in direct proportion to the temperature, are also encountered. Sulphuric acid, formed by sulphur dioxide pollution, will accelerate the breakdown of paint, particularly oil-based films. Paint media resistant both to acids, depending on concentration and temperature, and oxidation include those containing bitumen, acrylic resins, chlorinated or cyclised rubber, epoxy and polyurethane/coal tar combinations, phenolic resins and p.v.c. 

Composition. Chlorinated rubber combination paints contain a second resin as the property-determining binder. The chlorinated rubber is added to an alkyd resin, acrylic resin, or bituminous substances to improve properties such as drying rate, water resistance, or chemical resistance. This application only accounts for a small proportion of the total chlorinated rubber consumption. 

Uses Plasticizer, compatibilizer for thermoplastic backbone coating resins (e.g., nitrocellulose, PVC copolymers, cyclized rubber, PVB), alkyd/ amino stoving enamels, and acryl-isocyanate combinations Properties SI. yel. high-visc. liq. char, odor unlimited dilutability with aromatic hydrocarbons, esters, glycol ethers, ketones, chlorinated hydrocarbons largely dilutable with lower alcohols, aliphatic hydrocarbons dens. 1.10 g/cm (20 C) dynamic vise. 3500-13,500 mPa s flash pt. > 150 C >95%NV... 

---