2016年5月6日星期五

How to Use Fibreglass Resin Patch Kits

Fiberglass resin patches are made of thermosetting  resins or epoxies, that contains 2 parts: resin and hardener. you mix these components together to make a reaction that internally generates heat then the material hardens over damage like holes and cracks in fibreglass, steel and different nonporous surfaces. The kits contain nearly everything you want to repair these surfaces yourself.fiberglass chopped strand mat
ONE. Clean the broken space with a solvent like ethyl acetate or methyl radical ethyl ketone to get rid of residues like oil, grease or dirt. Solvents like acetone are extremely flammable and should be toxic. read product labels when using these product and follow instructions and safety precautions.

TWO. Rinse the area with clean water and make it to dry fully.

THREE. Sand the area with coarse-grit sandpaper to at least one inch on the far side the damage. If there are cracks, drill a small hole at the end of every crack. This prevents the crack from increasing beneath the patch.

FOUR. Smooth the sanded area by sanding with fine-grit sandpaper, feather it out at the edge so the broken space is level with the undamaged surface around it.

FIVE. Wipe the sanded area with a fabric dampened with alcohol.

SIX. Cut the fibreglass cloth enclosed in your repair kit in order that it fits over the sanded space. Place the material over the area and tape the sides with adhesive tape to carry it in place.

SEVEN. Combine the resin and hardener in equal amounts on a bit of cardboard or another disposable surface. combine the 2 components till you get a uniform color, however use only enough of each to finish the repair.

EIGHT. Apply the mixture to the fibreglass fabric using the plastic spreader supplied with your kit. spread it so it's equally distributed over the whole fabric.

NINE. remove the masking tape and unfold the mixture over the sides that are exposed.
TEN. Cover the repairment with waxed paper or cellophane and leave the patch to cure nightlong. fibreglass resin patch kits vary in drying time. Some cure in around 3 hours, whereas others need up to twelve hours. read the label to make sure you wait long enough for the repair to completely harden. If you'll be able to build an impression within the patch together with your thumbnail, it’s not totally cured.

ELEVEN. Feather the sides and smooth the patch using fine-grit sandpaper like 220-grit. smooth once more with finer grit paper, like 320- to 600-grit, till the patch is level with the unbroken surface close it.

TWELVE. Wait at least twelve hours when applying the patch to prime and paint the area to make sure the resin has totally cured.

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