grp beginner

Author
Discussion

JohnMcL

Original Poster:

146 posts

143 months

Saturday 27th December 2014
quotequote all
I’m a fibreglassing virgin so please bear with me. Don’t hold back if I am talking rubbish.

I want to make a radiator fan shroud so the form would be like a big biscuit tin lid.

I could form the shape in foam over the back of the radiator and then make a mould. But making a mould seems a lot of work for a one-off and how to allow for the thickness of the final laminate along the turned-down edges. The turned-down edge issue could be avoided by either not having one making mounting and sealing a bit more difficult or by bonding on a pre-formed angle in situ.

Another way could be to build directly onto the radiator and foam. But how to get a decent surface finish – especially if I go for a clear top coat to show the cloth weave below. Maybe that would be too ambitious but I do need the surface to be smooth.

Thanks in advance for any advice and comments.

348jeff

125 posts

127 months

Saturday 27th December 2014
quotequote all
There is quite a few books or DVDS available from this place which may point you in the right directon....

http://www.ecfibreglasssupplies.co.uk/c-415-books-...

RichGault

131 posts

121 months

Sunday 28th December 2014
quotequote all
Any pics of the shroud you want to replicate my good man?

Could be easy or fairly tricky.........

RichGault

131 posts

121 months

Sunday 28th December 2014
quotequote all
Any pics of the shroud you want to replicate my good man?

Could be easy or fairly tricky.........

JohnMcL

Original Poster:

146 posts

143 months

Monday 29th December 2014
quotequote all

It would be a lot like this. Taken from a post by Rowdyrenault in a current topic on the Ultima forum. It's not for an Ultima but the format and layout are similar.

RichGault

131 posts

121 months

Monday 29th December 2014
quotequote all
Reckon your best bet on this job would be to take a simple splash mould off the back of the component, doesn't have to be anything special in terms of thickness I think you would need about 4mm total thickness, this way you can also pick up the locations for any mounting holes etc.

In terms of component thickness just take a pair of calipers to the component and measure the thickness then you can decide on the amount of layers of carbon you need to use. With carbon only 3 to 4 layers of 200k should suffice.

Hope this helps matey

JohnMcL

Original Poster:

146 posts

143 months

Monday 29th December 2014
quotequote all
Thanks RG. I'll give it a go.