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3M Marine High Strength Repair Filler - 1 Gallon, 4/cs - 46014

SKU #3M-46014
• Restores damaged fiberglass hulls and decks on boats
• Short-strand fiberglass reinforced
• Non-staining, non-shrinking
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3M Marine High Strength Repair Filler restores damaged areas of fiberglass hulls, decks and other areas on boats. Our filler is a high performance product that is reinforced with short strands of fiberglass for added strength. Boat restoration professionals commonly use this product.A Strong Two-Part Filler for Marine Repair3M Marine High Strength Repair Filler is a uniquely modified vinyl ester structural filler formulated with short strand fiberglass for non-fairing applications. The fiberglass fibers interlock to give our filler additional strength compared to regular fillers. Filler is non-staining, non-shrinking and it comes with 3M Marine Creme Hardener.

  • Filler restores damaged fiberglass hulls and decks on boats
  • Short strands of fiberglass reinforce strength of filler
  • Paste consistency allows application of vertical surfaces
  • Non-staining and non-shrinking formula
  • Comes with 3M Marine Cream Hardener

We recommend this product for filling and covering scratches, dings, rust-outs, blemishes, pinholes and other simple surface defects that otherwise exhibit a true or fair line. Use this filler to level or even out depressions and low spots.

Directions for Use

3M Marine High Strength Repair Filler comes in a paste consistency that can be applied on vertical surfaces. It offers a working time of 10 to 15 minutes and may be sanded in 30 minutes. Before using this product, please reference Product Label and/or Safety Data Sheet for Health and Safety Information:

  • Must be used when surface, product and shop temperature are above 60°F.
  • Clean surface free of dust, grease, wax, oil and moisture. Laminate must be dry.
  • Grind damaged fiberglass using a coarse grade (40 grit) 3M abrasive, and wipe clean with a tack cloth.
  • Mix 3M Marine High Strength Repair Filler thoroughly. Next, apply desired amount of filler on a clean non-porous mixing surface. Do not use cardboard.
  • Add 2 percent 3M Marine Creme Hardener (1-1/2-inch strip to a golf ball sized amount of filler). Mix filler and hardener to a uniform color, making sure to break any air bubble that may have been introduced. Mix only what you will use in 15 minutes.
  • Apply 3M Marine High Strength Repair Filler to a clean surface to be repaired. Apply additional filler no thicker than 3/8 inch per layer, building slightly lower than the surrounding area. Let cure for 30 minutes. For final filling and sanding, apply 3M Marine Premium Filler following label directions. (For bonding apply filler to one surface. Clamp joint if necessary. Handling strength in 3-4 hours.) Uncured material may be removed with a good cleaning solvent. Use proper safety precautions when handling solvents.
  • Apply primer, paint or gel coat following manufacturer's recommended procedures.
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