3M™ 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.
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.
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.
Directions for use – 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 degrees Fahrenheit.
- 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

3M 31219, 675L, 1/2" X 72", 30u, Diamond Microfinishing Film Belt 7010508920
3M 72074, Organic Vapor/Chlorine/Hydrogen Chloride/Sulfur Dioxide/High Efficiency Cartridge 453-03-01R06, AEP3, 7000131720, 2 Packs/Case
3M 45022, Diamond Grade DG3 Reflective Digital Sheeting 4083UDS, Fluorescent Yellow Green, 36 in x 50 yd, 1 Roll/Case, 7100282393
Dynabrade 13061 Arbor Assembly 3/8"-24 Female Thread
Dynabrade 93696 3/8"-24 Female 3/8"-24 Male, 1-1/16" Length
Dynabrade 55064 3/8"-24 Female 5/8"-11 Male, 1" Length
3M 27802, Stikit Paper Sheet Roll 426U, 100 A-weight, 2-3/4 in x 35 yd, 7010362340
Dynabrade 58058 5/8"-11 Female 5/8"-11 Male, 2" Length
3M 86992, Diamond Disc, 3" Roloc, 674W, 120 Mesh, TR, 7100143477, Box of 5
3M 22395, Roloc Disc 361F, 60 YF-weight, TR, 3 in, Die R300V, 7000045098
3M 26139, PPS Series 2.0 Adapter, Type S43, 1/4 Male, 19 Thread BSP, 7100135337
3M 66615, Cloth Belt 341D, 50 X-weight, 3 in x 21 in, Fabri-lok, Single-flex, 7000118855, 25 per case
3M 22393, Roloc Disc 361F, 36 YF-weight, TR, 3 in, Die R300V, 7000045093
3M 77558, Cubitron II Hookit Cloth Disc 947A, 77558, 40+ to 120+, 6 in x NH, Die 600Z, 7100232737
3M 07466, Scotch-Brite Roloc+ Clean and Strip Disc 7466, 4 in x 1/2 in S XCS, 7000120779, 10/case
3M 62604, Scotch-Weld Threadlocker TL42, Blue, 1 mL Pipette, 7100064043, 100/case
Norton 66254489957 Wheel, Vortex-7am, 6" X 1/2" X 1" C2312 Nor VTME7 PH VTC+, 4 Each
3M 55597, Hookit Paper D/F Disc 236U, 6 in x NH 6 Holes P320 C-weight, 7000119588
3M 99297, Scotch-Weld Structural Plastic Adhesive DP8005, Off-White, 490 mLDuo-Pak, 7100090196, 6/case
3M 26580, Accuspray ONE Spray Gun System with PPS Series 2.0 Spray Cup System, 7100163226 
