SP Microballons are a phenolic resin filler agent that can be mixed into epoxy system mixes to produce a redish/brown colouration for cosmetic filler in wood construction.
SP Microballoons are hollow phenolic resin spheres which have a distinctive reddish/brown colouration. This makes them particularly useful for cosmetic fillet joints and fillers in wood construction, as well as structural adhesives for less demanding applications on softer timbers such as cedar. Although not as waterproof as SP Glass Bubbles, SP Microballoons are often preferred for their excellent sanding characteristics.
SP Microballoons are not normally used with polyester or vinylester resins because they can be subject to styrene attack which may cause the spheres to collapse.
When storing SP Microballoons, it is particularly important to exclude air as they readily absorb atmospheric moisture which will affect the performance of the filled mixture.
SP Glass Bubbles and SP Microballoons can be mixed in any proportion for colour purposes.
SP Microballoons Specifications
Quantity 150g
Composition Phenolic Resin
Appearance Reddish/Brown Powder
Particle Size 50 microns
Particle Density 250g/Litre
Bulk Density 100g/Litre
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