Fiberglass is a notoriously firm information that is used in boats, bathtubs and still garage doors. But, as with any info, it can grow cracks or holes. You Testament repair the gap from the inside absent, so you can beget a seamless repair that Testament match the modern.
Instructions
1. Treasure trove the damaged parcel of fiberglass provided it is not clearly visible. This can be done by tapping the fiberglass with a laborious part. Damaged fiberglass has a stupid sound, while natural fiberglass sounds tight.
2. Alpha the repairs by working from the inside. This Testament concede you To possess a seamless repair on the out.
3. Divide out the damaged universe and employment a grinder to taper the gap. The rationale for creating a taper is to cede the original laminate exceeding surface sphere to bond to. This Testament accession the chance the repair Testament assignment.
4. Screw or tape a waxed backer to the bottom of the hole. The wax backer will give you a hard surface to work on while you are patching the hole.7. To begin the repair, you will need to coat the waxed backer in a gelcoat.
Treat the exterior border of the hole with a de-waxing solvent. This will help create a strong bond when you apply the new fiberglass.5. Coat the area around the hole in paste wax. Paste wax will ensure that any resin that runs will not bond to the undamaged exterior.6.
Gelcoat is pigmented resin, so you will need to match up the colors. This will serve as the smooth exterior finish that will match your undamaged fiberglass.
8. Cut fiberglass fabric and mat to the size of the hole. Place in two layers of mat, and then fabric. Then alternate layers of fiberglass mat and fabric. The amount of fabric and mat you use is determined entirely by the thickness of the fiberglass, but any more than four layers will weaken your bond.
9. Use polyester resin or epoxy to patch the hole and secure the fabric and mat. For polyester resin, you will need to use a laminating resin extremely. A laminating resin will increase the strength of the bond.
10. To harden polyester resins, you will need methyl ethyl ketone peroxide as a catalyst. Follow the manufacturer's instructions on how much to use. Using a resin roller, remove any bumps or air bubbles.
11. Remove the wax backer and fill in any exterior imperfections with more gelcoat. Sand and polish as necessary.
