Foster 45-00 Sealfas G-P-M Mastic | GLT Products

Foster 45-00 Sealfas G-P-M Mastic

Foster® 45-00™ (brush/spray) Sealfas G-P-M® Mastic is a high solids water-based general purpose mastic having excellent trowel and spray properties. Sealfas G-P-M Mastic is used for the protection of thermal insulation and hard, dry cement coats, both indoors and outdoors.

Sealfas G-P-M Mastics 45-00 conform with current requirements regarding use in meat and poultry processing areas under federal inspection. Letter of certification is available upon request.

Nuclear Grade Sealfas G-P-M 45-00 can be supplied to meet the stress corrosion and chemical analysis requirements of MIL-I-24244C or nuclear regulatory guide 1.36 on special order. Sealfas G-P-M Mastic meets NFPA 90A & 90B 25/50 requirements. Sealfas G-P-M Mastic is produced under the classification and follow-up service of Underwriter's Laboratories, Inc.

Sealfas G-P-M Mastic contains no asbestos, lead, mercury, or mercury compounds.


  • Fire-resistive
  • Ease of application
  • Non-flammability
  • Non-toxicity
  • Mild odor
  • Insulation compatibility
  • Good package stability
  • Excellent outdoor durability.

GLT Products is your One Source supplier for mastics supplies. For more information, please see our data sheet or contact your sales rep.

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