Jif-Set® Underlayment, our best selling low cost high quality floor prep and patch.

Jif-Set System, Jif-set Powder and Leinweber's Liquid Latex

Jif-Set® is a fast setting alpha gypsum based cement two part, powder and liquid, floor patch / underlayment used for patching, smoothing, or leveling interior subfloors prior to finish floor covering. May be used over sound above grade concrete or wood subfloors. When mixed with Leinweber's Liquid Latex, Jif-Set® is self-bonding with a compressive strength of 2,800 psi after 7 days and 4,600 psi after 28 days. Place up to a maximum of 3/8" per lift.

Jif-Set® powder is packaged in 10 lb. and 25 lb. bags.

Lienweber's Liquid Latex is a  styrene butadiene latex rubber/ silicone liquid (SBR) formulated for use with Jif-Set® powder. It is packaged in 1 gal. and 5 gal. containers.

Mixing Tip

Leinweber's underlayments may be mixed by hand or easily mixed with a 150 rpm drill and mixed for 1 - 2 minutes untill the material forms a consistent slurry.

Jif-Set Product Data Sheet Downloads

Jif-Set Product Data, Instructions, and Specifications
Jif-Set Spec Sht.pdf
Adobe Acrobat document [1.5 MB]
Leinweber's Liquid Latex Product Data, Instructions, and Specifications
Leinweber's Liquid Latex Product Sht..pd[...]
Adobe Acrobat document [47.7 KB]
Jif-Set MSDS
Adobe Acrobat document [1.4 MB]
Leinweber's Liquid Latex MSDS
Adobe Acrobat document [2.2 MB]

Contact us for a floor prep quote.

Contact Information

Office Address

F.H. Leinweber Company, Inc.

9812 S Cicero Ave

Oak Lawn, Illinois  60453 

Office Phone

(708) 424-7000 



You may also use our contact form

Office Hours

Weekdays 8:00 AM to 5:00 PM


Plant and Warehouse Address

346 West 107th Place

Chicago, Illinois 60628 

Plant Phone

(773) 568-7722 

Plant Hours

Monday - Thursday 6:00 AM to 2:30 PM

Friday, Saturday, Sunday Closed 


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