Gibco MRF Dry Mortar Additive 8 oz Jar

3 Reviews
Contractor pricing
Available in CT Warehouse More Info
Available in UT Warehouse More Info

Product Details

Product Details

Gibco's MRF Dry Mortar Additive, 8 oz Jar

Admixtures to enhance the performance of masonry mortars and cement based plaster

  • 8 oz treats 22 Gals of water
  • Greater resistance to freeze and thaw
  • Replaces lime
  • Reduces water penetration
  • No efflorescence
  • Lower batch cost
  • Reduced shrinkage
  • Less storage and handling
  • Avoids waste
  • Less call backs
  • Non-tonic, non-hazardous


  • GIBCO'S DRY is a highly concentrated admixture designed as a replacement for lime in masonry mortar and cement plaster mortars. This product serves 3 basic functions in cement mortar
  • 1. Plasticize: To give the contractor the desired workability
  • 2. Air Entraining: Also for workability and greater resistance to freeze and thaw
  • 3. Water Reducer To increase compressive and bond strength
  • The dosage rate for GIBCO'S Dry is 1 ounce per 94 pounds of Portland Cement type I or II
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Ratings & Reviews

3 reviews

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1/16/2015 5:02 pm

Mortar Magic

by Tim Nelson -

This product has change my life! I used the product with the grout gun and that was great. However, this led to ideas to use for other vertical concrete applications I do. Awesome product. Thanks Contractors Direct!

12/2/2015 7:36 pm

dry mortar additive

by uk brickie

I spent a long time searching for a decent mortar additive here in the U.S. Finally found this great product & now can make a workable mortar mix. Thanks

3/16/2019 12:27 pm

Problem solver

by Alan

Great. Solved grouting problem. Plan other purchase.