Sunday, October 6, 2013
How to Use Fiberglass Jelly
Fiberglass resin jelly is a no-drip, self-hardening product that works well for doing repairs in difficult areas. If you are working on a vertical or oddly shaped surface, the jelly consistency of this product can assist you in repairs or creating the finish you need by forming to the surface and remaining in place.
Instructions
- 1
Prepare the area to be repaired. Remove any debris or flaking. Chip or cut the surface so that the product can fill in and adhere. For example, if you have a crack, cut or grind a groove down the middle so the jelly can get into it and stick. Measure the size of the fiberglass cloth you will need to cover the area if you are using it in the repair. Cut it now to have it ready.
2Wear the gloves and safety goggles, and clean the surface of the repair area well with acetone and a clean cloth.
3Pour the amount of fiberglass jelly you estimate you will need for the first application into a clean disposable cup. The jelly hardens fast, so time is of the essence, and you dont want to waste product you cannot use.
4Spread a layer of the jelly with a brush or flat paddle-type stick. Work it into the groove or hole, wherever the product needs to fill. Work the layer of fiberglass cloth into the jelly layer if you are using cloth to reinforce the repair. Apply a thin coat of the jelly over top of the cloth, like a reverse sandwich.
5Allow to dry completely. Fiberglass jelly dries quickly. Depending on the temperature and humidity, the area could be ready to sand within 20 minutes. Sand with heavy grit sandpaper and smooth out the repair.
6Apply another coat of jelly or jelly and cloth, if necessary. The cloth should be embedded enough not to come through during sanding; it can be used minimally with the jelly. Dry and sand as before. Feather the edges of the repair until the area looks like the rest of the surface.
7Clean the area with acetone. It is ready to paint.
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