Joint Filler

JF-75 is a self-leveling, 100% solids, aromatic two- component polyurea joint filler. JF-75 is designed for 15-25% movement of an installed joint width. A minimum of 28 days is recommended for concrete to effectively cure prior to installing joint filler. JF-75 can be used to fill interior random cracks, control joints or new construction joints on horizontal concrete surfaces.

Physical Properties

Mix Ratio




Gel Time (Seconds), ASTM 1640


Tack-Free (Min) , ASTM D1640


Open to Foot Traffic (Min) , ASTM D1640


Shore A Hardness, ASTM D2240

73 – 78

Elongation %, ASTM D638, Type IV

330 – 380

Tensile Strength (psi), ASTM D638, Type IV

615 – 670

Tear Strength (lb./in.) ASTM D624, Die C

150 – 170

Adhesion to Concrete (psi) ASTM D7234


Tabor Abrasion, ASTM D4060

(mg wt. loss (1000 g, 1000 revs, H-18)


The values stated in this technical data sheet are produced under controlled laboratory conditions.

Joint filler