Henry 289 white roof sealant is a white elastomeric acrylic patching compound specially formulated for repairing and preventing roof leaks prior to coating with an acrylic reflective coating.
													
																	Roofing white mastic. 
									
	
		
	
																	Henry 289 elastocaulk is a white vinyl acrylic compound that s designed to seal seams and roof leak areas. 
																	Several different kinds of products are referred to as mastic. 
																	September 10 2020 roof mastic is a roofing product used to seal a roof so water cannot penetrate. 
																	Use with 296 elastotape for reliable repair prevention. 
															
													
									
	
		
	
																	Generally speaking roof mastics are sticky drying to a flexible rubbery finish after they are applied and allowed to cure. 
																	Henry 289 elastocaulk will not crack craze or lose adhesion when applied as directed to a smooth clean sound roof surface. 
																	Easy to apply fiber reinforced for superior crack bridging performance. 
																	Doesn t bleed through reflective coatings. 
															
													
									
	
		
	
																	Tropical roofing products 979 great white mastic isa white solvent based fiber reinforced sebs rubber masticformulated to repair tpo membranes.