REFLECTOR: How smooth for Smooth Prime?

[Keith Hallsten]

Smooth Prime is really a surface filler, not a true primer.  It goes on as
rough as a cob with a roller (3 to 6 coats), and must be sanded before the
"real" primer is applied.  Thus, there is little benefit to getting the
surface excessively smooth before applying Smooth Prime.  Excess smoothness
can actually cause adhesion problems.  I wouldn't go any finer than 150 grit
before applying Smooth Prime, then no finer than 320 or 280 grit before
applying the primer recommended for your top coat.

 

Keith Hallsten 

 

  _____  

From: reflector-bounces at tvbf.org [mailto:reflector-bounces at tvbf.org] On
Behalf Of Douglas Holub
Sent: Thursday, June 28, 2007 1:46 PM
To: reflector at tvbf.org
Subject: REFLECTOR: How smooth for Smooth Prime?

 

To which grit should we sand before we prime? 150?  220?

 

Doug Holub

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