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[Brian60]

Has anyone experimented with alternative bases to the traditional glass mat/tissue for use with resins?

I have a fast rescue boat to mould, its only 90mm long and I think that even with the lightest tissue I have it is not going to take the various curves. I was thinking strips of paper kitchen towel or toilet tissue but will it have the strength or will it just be too brittle once the resin has cured?

[Colin Bishop]

Paper towels are likely to disintegrate. Many years ago I used nappy liner tissues and resin very successfully to sheath a hull but not sure if they would be strong enough for moulding purposes. It would be cheap enough to make up a sample and test it though.

Colin

[Liverbudgie2]

You can get a very fine matt, almost like muslin, which takes almost any shape; on such a small mould I would use small pieces initially, and then use progressively larger sections until you have archived your required result.

LB

[Subculture]

You can get glass in 25 grams per meter- very fine.

Carbon fibre tissue is also available.

[Time Bandit]

Wait until your wife ist out og the house get into the bedroom and grab a pair of tights.
Works perfectly on the outside of a hull.

Otherwise (if you have to mould on the inside) there is very very light carbon fiber matt available, up to 2g/mē (no joke)

http://shop1.r-g.de/art/190282

[Brian60]

Now that is fine stuff Time Bandit! However it is Germany - I ordered some parts from a dealer on 29th June and I am still waiting for delivery! It's not the german end but spanish customs, just wish they for once would get off their lazy fat arses and do something! I've waited just as long for stuff via the UK.

I think I'll give Colin's idea a try, it might just work if I cut it into fine strips.

[nemesis]

You can get omnidirectional cloth, the type used in moulding yacht hulls, it conforms to any angle, Nemesis

[Time Bandit]

Germany to Spain --> No customs involved, itīs within the EU 

But you should find that as well in spain I believe.

[Netleyned]

Germany to Spain --> No customs involved, itīs within the EU 

But you should find that as well in spain I believe.

Tried telling Brussels ?

Ned

[Brian60]

Tried telling Brussels ?

Ned

Tried telling that to Spain! Which seems to have laws that only it sees fit to obey! I have ordered parts from Cornwall Model Boats that have taken 4 weeks to clear customs via airmail. Then I have ordered parts from the same supplier that have arrived 3 days later - go figure. My son posted out some tablets for my wife on the 3rd July, they arrived with the saturday post 8th August. In the meantime she went to the local pharmacy and bought 100 of them for 3€. The UK prescription charge is Ģ8 odd for 30, but thats another story entirely.

[martno1fan]

What you have to realise is it isn't just the resin that gives strength it is the reinforcement you use in the layup ie the chopped mat or any cloth you use,tissues or any other material will not work.Usually on all my hulls i manufacture i use a thin layer of chopped mat as my first layer,you can use a veil cloth first or tissue glass mat if you wish.For all the sharp corners edges strakes etc i firstly make a mix or resin and chopped glass strands this eliminates any air pockets in these critical areas,then your ready for laying you material on top.How heavy you want the boat determines what weight mat or cloth or both you go with.You say boat to mold so im assuming you want to take  a mold off your original boat ? if so then theres a whole lot more to it and i suggest you do some research.If you have a mold then its a lot easier.in my pic you can clearly see my bog mix of resin and 3/4" chopped glass in my Apache strakes they are solid glass when set it also means any mat and cloth or both as in this case do not need to go all the way into these tight curves
Ive been building rc boat hulls for 7 yrs with success .

[Captain fizz]

Brian, you are missing the point here. This is the ideal opportunity to convince yourself of your need for a 3D printer
What could possibly go wrong?