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Smith's Products

Cracks & Joints

Smith's Poly JF

Poly JF

Semi-Rigid Joint Filler, Regular Cure
Product Quantity 1.25 gal
Colours Natural Beige
Working Time 50-60 Minutes
Pot Life 35-45 Minutes
Dry Time 90-120 Minutes Shave | 3-4 Wet Grind | 6-7 Hours Dry Grind

8-10 Hours HFT | 24 Hours Steam Clean
SF Or LF 259 LF
Area Or Depth 1/4" x 1/4" Thick
Floor Or Wall Floors & Walls
Interior or Exterior Interior
Hardness (Pencil) D65 (+-5)
TF Tack Free
RC Recoat
FT Foot Traffic
LT Light Traffic
DT Dry Through
FC Full Cure
HFT Heavy Foot Traffic (Forklift)
VT Vehicular Traffic
FUT Full Traffic

  • Use Smith's ISC Color Packs at 4% by volume to tint Smith's Poly JF

  • Smith’s Poly JF is a Heavy-Duty, Self-Leveling, Moisture Tolerant, 2-component Semi-Rigid Polyurethane Joint Filler for use to fill and protect joint edges subject to traffic erosion and spalling under industrial forklift, caster and vehicular traffic as well as heavy loads. Smith’s Poly JF is a pourable grade 2-component Polyurethane that yields tenacious adhesion to clean, sound and solid substrates such as Concrete, Epoxy Mortars, Cementitious Urethane Mortars, Polymer Modified Concrete Overlays, and a variety of industrial coating systems. Also well suited for crack, spall/gouge and joint repairs up to 5” thick

  • RECOMMENDED USES: Bonds to: Asphalt; Ceramic, Porcelain, Stone & Quarry Tiles; Coatings (Epoxy, Cementitious Urethane, Polyaspartic, Polyurethane); Concrete & Polymer Modified Overlays; Metal (Stainless Steel, Iron, Steel, Copper, Treated Aluminum*)

  • Heavy Duty: Chemical Resistant, Flexible, Tenacious Bond

  • Compatible with traditional floor covering & resinous coatingsystems

  • High Solids Content – 100% solids

  • Low Odour & Low VOC’s – Non-Tainting

  • Pour Grade, Self-Leveling

  • Suppresses Minor Cracks from Telegraphing

  • Resists Aging & Elasticity Fatigue

  • Suitable for use over In-floor Radiant Heat systems

  • May be top-coated with thin-film Polyaspartics & Polyurethanes (less than 8 mils) once hard

  • No red label required for shipping

  • Acceptable for use in USDA/FDA/CFIA regulated facilities: Meets FDA Food Code - Physical Facilities 6-101.11 Surface Characteristics. Not tested for CFR 21 Direct food contact

  • NECESSARY TOOLS & EQUIPMENT: Plastic Sheeting or Ram Board to cover floor for mix station; Paint mixing paddle attached to a Low speed ½” drill (Variable Speed 650 rpm or less); 5 gallon Plastic Mixing Buckets; 4” wide Razor Scrapper (OPTIONAL – For Shaving); Pour Spout Cups; Dry Sand or Backer Rod for bottom of joints;+ Masking Tape; Measuring Cups (For Part Mixing Applications); Diamond Cutting Wheel attached to an appropriate joint saw; Vacuum Shroud Edge Diamond Grinder with a segmented diamond cup wheel; Cleaning Solvent (Acetone, MEK, or Xylene)

  • APPLICATION: Dependent upon the depth of the joint, joints may be filled in 1 or 2 pours. Fill from the bottom of the joint to the top taking care to avoid air entrapment. Pour the mixed Smith’s Poly JF into the joint slightly above the surface elevation of the concrete to allow for settling and better leveling. Should any sink holes occur, reapply Smith’s Poly JF as necessary once joint filler has hardened for approximately 3 hours or tack free. FINISHING: The excess Smith’s Poly JF may be removed either via shaving off with a 4” wide razor scraper or diamond grinding to smooth out the joint surface flush with the surrounding substrate elevation. The optimal cure time prior to either method will vary due to the temperature