Bob Smith Industries BSI-212 Mid Cure 15 Epoxy 13 oz
Bob Smith Industries BSI-212 Mid Cure 55 Min Epoxy
13 OZ
Product Description:
MID-CURE™ 15 min. epoxy is used in larger areas where more working time is needed. It is more water resistant and can be used as a substitute for QUIK-CURE™ in most applications. MID-CURE™ is our most flexible epoxy and is ideal for gluing to fiberglass surfaces. Allow 45 minutes before handling parts and 2 hours for full strength.
BSI-212: 13 oz combined net wt. (369 g) 007336212008 upc
Other sizes available
BSI-203: 4.5 oz combined net wt. (128 g)
BSI-204: 9 oz combined net wt. (256 g)
BSI-212: 13 oz combined net wt. (369 g
| # | Question ? | Answer |
|---|---|---|
| 1 | What is the working time for BSI Mid-Cure 15 min epoxy? | 5–7 minutes at 70 °F (21 °C). Warmer temps shorten it to ~3 min; cooler temps extend to ~10 min. |
| 2 | How long until BSI-212 is fully cured? | Full cure: 6–8 hours at 70 °F. Handling strength in 15–20 min. |
| 3 | What is the max temperature BSI Mid-Cure can handle? | 165 °F (74 °C) continuous. Short peaks to ~200 °F possible but bond softens. |
| 4 | Will BSI Mid-Cure turn yellow in sunlight? | Yes, it is not UV-stabilized. Prolonged sun/UV exposure causes yellowing within weeks. |
| 5 | Is BSI-212 waterproof after cure? | 100 % waterproof once fully cured. Safe for marine, aquarium, and outdoor use. |
| 6 | Can I use Mid-Cure to glue carbon fiber? | Yes, excellent for carbon fiber, fiberglass, Kevlar, wood, metal, and most plastics. |
| 7 | Does BSI Mid-Cure work on polyethylene or polypropylene? | No—requires flame/corona treatment or BSI’s Insta-Set accelerator + primer for PP/PE. |
| 8 | What is the mix ratio for BSI-212? | 1:1 by volume (resin : hardener). Use graduated cups or pump dispensers. |
| 9 | How much does the 13 oz kit yield? | 13 oz total = 6.5 oz resin + 6.5 oz hardener (~400 mL mixed). Covers ~200–250 in² at 1/32" thick. |
| 10 | Is BSI Mid-Cure flexible or brittle? | Most flexible in BSI lineup. Shore D ~70; absorbs shock/vibration without cracking. |
| 11 | Can I sand and paint BSI-212 after cure? | Yes—sands smooth with 220–400 grit; accepts enamel, lacquer, or epoxy paints. |
| 12 | Will Mid-Cure foam or expand? | No—100 % solids, zero shrinkage, no foaming. |
| 13 | Is it food-safe or FDA approved? | No—not FDA-compliant. Do not use for food-contact surfaces. |
| 14 | How do I thin BSI Mid-Cure? | Do not thin—it reduces strength. Use BSI Slow-Cure for longer flow time instead. |
| 15 | Can I use a heat gun to speed cure? | Yes—90–100 °F shortens cure to ~2 hrs. Avoid >150 °F during cure or bond weakens. |
| 16 | What surfaces need roughing before gluing? | All non-porous (metal, glass, smooth plastics). 120–220 grit sanding improves adhesion. |
| 17 | Does BSI-212 smell bad? | Low odor compared to hobby epoxies; amine blush possible in humid conditions—wipe with IPA. |
| 18 | Shelf life of unopened BSI Mid-Cure? | 2 years from manufacture date printed on bottle if stored 60–75 °F. |
| 19 | Can I tint or color Mid-Cure epoxy? | Yes—add epoxy pigments or acrylic paint (=5 % by volume) to resin side before mixing. |
| 20 | Is BSI-212 gap-filling? | Moderate—fills gaps up to 1/16" (1.5 mm). For thicker, use BSI Quik-Cure or fillers. |
| 21 | Will it bond aluminum without primer? | Yes, but scuff + acetone wipe yields >2,000 psi shear strength. |
| 22 | Can I use Mid-Cure for knife handle tangs or handle scales? | Ideal—high impact resistance; preferred by custom knifemakers. |
| 23 | What happens if I mix too much and it overheats? | Exotherm in cup >200 °F can smoke/crack. Mix =2 oz at a time in shallow dish. |
| 24 | Is BSI Mid-Cure electrically conductive? | No—fully insulating (>10¹4 O·cm). Safe for electronics potting. |
| 25 | How do I remove uncured Mid-Cure from skin/tools? | Uncured: IPA or acetone. Cured: mechanical sanding/scraping only. |
UPC:
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