best fiber glass to fill a stock

[canuck4570]

I have a Tikka T3
wish to fill to forearm of my tikka plastic stock with fibber glass in order to have it machined to put a freeland rail
any recommendation in the type of fiber glass to fill my (tikka stock)
thank you

 

[Jrb572]

Re: best fiber glass to fill a stock

Upol Fibral. It's strong cheap and can be purchased at many local body shop supply stores. Mixes like bondo with a hardner and is easy to sand

 

[canuck4570]

Re: best fiber glass to fill a stock

thank you
canuck

 

[canuck4570]

Re: best fiber glass to fill a stock

would like to ask the question again because I have some specific about my tikka stokc

it is made with glass fibber reinforced copolymer polypropylene

so is U-POL FIBRAL still is good choice to fill the forearm
will it adhere well to my stock or some other product would be better
thank you

 

[Gene Poole]

Re: best fiber glass to fill a stock

Actually, polypropylene is one of the most inert plastics there is (only polyethylene and teflon are more inert). Nothing really bonds to it without expensive "activators". Your best bet is to drill some pockets into the channel so the resin has more surface area and angles to squish into.