Pentens PU-300 One Part PU Grouting (4kg & 20kg)
Brand : Pentens
Model Code : PU-300
Product Type : One Part Polyurethane Grouting for Leak Repair and Strength Restoration
Sizes : 4kg, 20kg
Colour : Dark Brown
Application Area : Floor slabs, Suspended floors, Terraces and balconies, Patios, Bathrooms, RC gutters and planter boxes, Swimming pools, Water tanks, Basements and fountains, Retaining walls
Product Description:
PENTENS PU-300 is a one-part polyurethane grout designed to permanently stop water leaks while maintaining or restoring the original structural strength.
Features / Advantages:
Negative side application possible
Deep penetration into very small cracks
Foam increases in volume to fill cavities and voids
Adjustable gel times
Excellent bond to wet surfaces
Underwater injection approved
Good adhesive strength, tolerant of movement Inert after curing, constant volume, no shrinkage
Does not create new cracks
Non-toxic
Storage:
Store in dry, cool place. Good storage stability for unopened containers at 15°C ~ 30°C.
Application Tools:
(Hand) Impervious gloves
Application Guide:
STEP 1 : Remove any mineral deposits or debris from the concrete surface, especially those caused by long-term water leakage.
STEP 2 : Drill holes for the injection ports (mechanical packers). The holes should ideally intersect near the center of the structure to ensure proper resin penetration.
STEP 3 : Place the packers into the holes so the top of the rubber sleeve sits below the concrete surface. If needed, gently tap them in and tighten securely with a wrench.\
STEP 4 : (Optional) If necessary, flush the crack with water to help the resin penetrate thicker walls more effectively.
STEP 5 : Select the appropriate resin based on crack type and site conditions:
Active leaks: PENTENS PU-300
Cracks and expansion joints: PENTENS PU-101
Hairline or dry cracks: PENTENS T-800
Some situations may require a combination of products.
Step 6 : After injection, remove the packers within 1 hour and patch the holes with PENTENS T-800. Ensure the area is clean and tidy.






































