I want apply a reflective paint to exterior wall of family room. The wall is cement block...slump block. Will this product work? Do I need a primer first?
                    Radiosity 3000, 1-Gallon
                                    Insulation
            
            
            
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                Open    Aug 02, 2020 - 10:33 AM
            
            
                
            
                            
                
                                    
         
     
    
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                Answer
    Aug 06, 2020 - 09:26 AM
    If your exterior wall is unsealed and unpainted (raw slump block) you would want to seal it, then prime it, then apply the Radiosity - this will give you the best result.     If your exterior wall is already painted, and that paint is holding up well, then you could choose to skip the priming step and just do the Radiosity, that is your judgement call to make.  Primer does what the name says, it primes a surface to accept paint, and in our experience paint jobs always turn out nicer with a stronger bond to the surface if you prime first.
        
    
 
 
                
             
         
        
    
        
    
        
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                    Radiosity 3000, 1-Gallon
                    
                        Radiant heat barrier 
 Radiosity 3000 is a paint additive that creates a radiant heat barrier on roofs, ceilings, and walls to reduce cooling costs. It can also be used in interior applications to reflect and trap warm, radiant heat from fireplaces, stoves, or in-floor heating systems. Radiosity ...
                            
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