Series 1438
Vinester
Generic Type
Novolac Vinyl Ester
Common Usage
A high-build, novolac vinyl ester, glass-flake filled lining with an enhanced elevated temperature resistance in dry and wet corrosive environments. Series 1438 is ideal for use in flue gas desulfurization (FGD) units, hot duct work, and wet and dry absorbers. Also an outstanding primary lining for many challenging chemical immersion services. Formerly ProPolymer 4844S.
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Volatile Organic Compounds
2.37 lbs/gallon (284 grams/litre)
Intermediate
Series 1428
Curing Time
| Temperature | To Recoat | Immersion | Maximum Recoat |
|---|---|---|---|
| 90°F (32°C) | 3 hours | 24 hours | 3 days |
| 75°F (24°C) | 4 hours | 48 hours | 5 days |
| 60°F (16°C) | 12 hours | 4 days | 7 days |
Recoat times are typical for coating to be dry-to-touch and ready for the next application. Immersion and certain other services may require longer cure times and/or elevated temperature post cure for optimal performance. ASTM D2583 Barcol Hardness check is also recommended, minimum 40. Coating that has exceeded its maximum recoat time should be checked for styrene or acetone sensitivity or uniformly scarified to assure secondary bonding. Consult Tnemec Technical Services and Technical Bulletin 22-119 R1.
Finish
Semi-gloss
Surfacer/Filler/Patcher
Series 215, 217, 252SC ChemBloc (MCK) mortar. Note: The following products can be used as a surfacer, filler, or patcher by mixing with 211-9111 Bulking Additive: Series 120-5002, 251SC, 1402, 1407, 1415, 1416, and 1418. 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.
Volume Solids
85.0 ± 2.0% (mixed). Series 1438 contains a reactive monomer and some loss will occur during application and cure. Actual solids by volume will vary depending upon temperature and air movement.
Recommended DFT
20.0 to 60.0 mils (510 to 1524 microns)
Number of Components
Two: Part A (base) and Part B (catalyst)
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