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				| BYK-A 500 |  
				
				
				
				
				
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				| Solution of foam destroying polymers, silicone-free |  
				
				
				
				
				
				
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				Silicone-free defoamer to prevent foam formation during production, filling, and application of solvent-based and solvent-free coatings.  BYK-A 500 displays spontaneous defoaming properties and demonstrates no negative influence on intercoat adhesion when overcoated. BYK-A 500 is especially suitable for wood and furniture coatings based on glossy polyesters, paraffin-polyesters and UV-curing polyesters.  Even at thin application parameters with curtain coaters, curtain stability is provided.  Good results can also be achieved in epoxies.  Used in non-pigmented wood coatings, a slight turbidity over dark wood could occur.  |  
				
				
				
				
				
				
				
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				Density at 20'C : 0.88g/ml Refractive index : 1.495 Non-volatile matter 10 minutes/150'C EN ISO 3251 : 6.5% Hazen colour index : 200max. Turbidity : 10max.TE/F Flash point : 45'C |  
				
				
				
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