Long Strand Reinforced Body Filler
3M Long Strand Reinforced Body Filler

Long Strand Reinforced Body Filler

Polyester Body Filler for Especially Strong Flexible Repaiirs
By: 3M

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This performance body filler can be used alone or in conjunction with fiberglass tape, cloth, or mat, to repair and rebuild rusted-out metal or damaged fiberglass materials.

Long Strand Reinforced Filler is reinforced with long-strand fiberglass to create especially flexible repairs that are even stronger than those made with short strand body fillers, and far stronger than conventional fillers..
There's a trade-off, however, in that those long strands make this filler stringy and more difficult to work with.
We recommend leaving this filler with a slightly concave surface, and overlaying a glazing putty skimcoat which will be easier to shape and sand to a smooth finish for above the waterline cosmetics.
For a smooth sanded surface below the waterline, use 3M Marine Premium Filler which is made with waterproof vinylester resin.

• Ideal for larger repairs, and for filling flexing gaps
• Longest lasting filler repairs
• Repairs dents and other surface incongruities in metal, fiberglass, and wood
• Waterproof when properly primed or topcoated

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