RE: Beginner at fiberglassing.
Hey,
Thanks for all the help!!!
Im going to be glassing a TF .60 P47. How much epoxy resin should i buy, 750ml or 1.5 litres?? How long is the shelf life of epoxy resins??
Now going on the scale detailing and painting.
When do you apply panel lines and rivets??? - after applying the filling primer to fill the weave???
I thought that using primer to fill the weave would make the top coat paint crack after a couple of months of aerodynamic loads. Eg. Same effect when you apply paint to thick
What about using a mix of micro ballons and epoxy to fill the weave. Anyone tried that????
Now onto the paints. I dont have an air compressor and an air brush, so i was wondering how well spray cans work???
Can you please list what type of filling primers and primers i should use??
Also, can you please list what type of topcoat paints i should use??? - ones that are fuel resistant
When do you sand in between paint coats, if at all???
Here are the stats for the fiberglassing epoxy resin i was looking at.
Typical Physical Properties of
Epoxy Bond Fibreglassing Resin 430
cured at room temperature
Mixing Ratio 2.3 : 1 by weight 2 : 1 by volume
Pot Life At 25°C 68 minutes (100g mass using Tecam Gelation Timer)
Exotherm Max temp 98°C after 80 minutes (50g sample)
Barcol Hardness
GYZJ 935 unite
Time of cure 1 day 36
2 days 42
7 days 62
21 days 65
Heat Deflection Temperatures
(ISOR 75) 42°C after 7 days at 25°C
50°C after 7 days at 25°C and 1 hour at 100°C
Ultimate Flexural Strength
(ISOR 178 KPa) 64120
Maximum force applied to the sample at a fibre strain of 5%. Note sample did not break during the test.
0.2% offset flexural yield strength KPa 45510
Flexural Modulus (ISOR 178) KPa x 105 21.4
Ultimate Compressive Strength
(ASTM.D,695) KPa 48260
Ultimate Tensile Strength (ISOR 527 KPa) 29650
Compressive Modulus KPa x 105 12.4
Elongation at Strength (ISOR 527) % 4.4
Cheers