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Filling cracks and scratches

PgrAm

Experienced Member
Joined
Sep 28, 2011
Messages
276
Location
Toronto, Canada
A few items in my collection have really bad scratches or cracks in them. How do you guys deal with these problems. Is there something that will fill these on a plastic case sort of how you can use wood filler to fix similar problems in wood? Is sanding down the plastic a good solution or does it cause too much damage?
 

Chuck(G)

25k Member
Joined
Jan 11, 2007
Messages
39,088
Location
Pacific Northwest, USA
You can use auto body filler (e.g. Bondo) to fill large cracks and even fabricate small missing pieces. It takes paint very well.

You can sand plastic, but be careful to make sure that you're not sanding off a texture. Use succeedingly fine grits to avoid making scratches that will be difficult to fill.
 

Plasma

Veteran Member
Joined
Nov 7, 2005
Messages
1,222
I like to use epoxy putty to repair cracked plastic. You can sand and shape it just like bondo but it's stronger.
 

Chuck(G)

25k Member
Joined
Jan 11, 2007
Messages
39,088
Location
Pacific Northwest, USA
Plasma, that's a good idea.

Also, if you're repairing seriously damaged plastic, it's often prudent to reinforce it from the opposite side (non-display side) using fiberglass cloth and resin (either epoxy or polyester). The result is very strong.
 
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