Series N237SC
ChemBloc
Generic Type
Modified Polyamine Epoxy
Common Usage
A multi-purpose resin for fiberglass reinforced mat (65 mils) or mortar/fiberglass reinforced mat (125 mils) secondary containment systems. Protects against chemicals, thermal cycling, impact and abrasion.
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Volume Solids
100% (mixed)
Base Coats
Series N237SC. (For a flexible basecoat option, refer to Series 206SC product data sheet.)
Topcoats
Series 280, 282, 252SC. Note: A saturant coat of N237SC liquids is required over fiberglass mat prior to application of topcoat.
Number of Components
Resin Containment Kit (RCK)–Two: Part A (epoxy) and Part B (amine)
Mortar Containment Kit (MCK)–Three: Parts A (epoxy), B (amine) and C (aggregate)
Volatile Organic Compounds
Unthinned: 0.11 lbs/gallon (13 grams/litre)
Thinned 5% (No. 2 Thinner): 0.45 lbs/gallon (54 grams/litre)
HAPS
Unthinned: 0.00 lbs/gal solids
Thinned 5% (No. 2 Thinner): 0.37 lbs/gal solids
Theoretical Coverage
1,604 mil sq ft/gal (39.4 m²/L at 25 microns). See APPLICATION for coverage rates.
Surfacer/Filler/Patcher
Series 215, N218. Note: A repair kit of 201, with Part C fumed silica, is available for small patching/surfacing repairs (reference Technical Bulletin 99-22). For more extensive repairs and additional information, contact your Tnemec representative or Tnemec Technical Services.
Primers
Self-priming or Series 201 (for horizontal and vertical applications) or Series 208, N241 (for horizontal applications only).
Curing Time
| Temperature | To Topcoat | Place in Service | Full Cure |
|---|---|---|---|
| 75°F (24°C) | 12 to 72 hours | 24 hours | 5 days |
If more than 72 hours have elapsed between coats, the ChemBloc coated surface must be mechanically abraded before topcoating. Note: A 24-hour cure provides for traffic, secondary containment, and certain mild chemical exposures. Up to five days cure is required for certain severe chemical exposures. Contact your Tnemec representative or Tnemec Technical Services.
Recommended DFT
Primer: 4.0 to 12.0 mils (100 to 305 microns) per coat
Resinous Basecoat: 6.0 to 12.0 mils (150 to 305 microns)
Mortar/Slurry Basecoat: 60 to 80 mils (1525 to 2030 microns)
Saturant: 16.0 to 24.0 mils (405 to 610 microns)
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