LOCTITE PC6231
Harmonization Code : 3506.10.00.00 | Prepared glues and other prepared adhesives, not elsewhere specified or included; products suitable for use as glues or adhesives, put up for retail sale as glues or adhesives, not exceeding a net weight of 1 kg

Main features
- Rapid 90-Minute Full Cure
- Self-Leveling Low-Viscosity Fill
- 10-15% Joint Movement Capability
Product Description
LOCTITE PC 6231 Rapid-Curing Concrete Joint Filler is a two-part, 1:1 mixed, self-leveling material for filling and repairing interior control joints and new saw-cut joints in horizontal concrete. The 100% solids, low-viscosity system gels in 3 minutes and cures in 90 minutes at 24 deg C, allowing traffic after full cure. It accommodates 10% to 15% movement of installed joint width. The cured material combines 1.9 N/mm^2 adhesion to concrete, 82% elongation, and Shore A 75 to 80 hardness for heavy-traffic and freezer-floor applications.
Key features
- Rapid 90-minute cure: Gels in 3 minutes and reaches full cure in 90 minutes at 24 deg C.
- Self-leveling joint fill: A mixed viscosity of 525 mPa s supports gravity feeding into prepared horizontal joints.
- Controlled joint movement: Accommodates 10% to 15% movement of installed joint width.
Applications
Applications include interior control joints, new-construction saw-cut joints, heavy-traffic industrial floors, freezer floors, and exterior horizontal concrete with minimal thermal movement.
TDS, SDS & Technical Documents
Technical Specifications
General Properties
Physical Properties
Mechanical Properties
Additional Information
As-supplied properties
Component values are reported separately; mixed properties apply after 1:1 volume mixing.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Mix ratio | 1:1 | By volume, resin:hardener | |
| Resin viscosity | 586 to 1,186 | mPa s (cP) | 25 deg C |
| Hardener viscosity | 392 to 1,142 | mPa s (cP) | 25 deg C |
| Mixed viscosity | 525 | mPa s (cP) | 25 deg C |
| Resin weight per gallon | 8.89 to 9.29 | lb/gal | As supplied |
| Hardener weight per gallon | 8.47 to 8.87 | lb/gal | As supplied |
| Mixed VOC | 1.7 | g/L | Mixed material |
Cured and installed properties
Cured-material values apply after 7 days at 25 deg C unless another condition is shown.
| Property | Value | Unit | Method / condition |
|---|---|---|---|
| Adhesion to concrete | 1.9 | N/mm^2 | ASTM D4541; cured 7 days at 25 deg C |
| Tensile strength | 8.3 | N/mm^2 | ASTM D412 / ISO 37; 24 deg C; cured 7 days at 25 deg C |
| Elongation | 82 | % | ASTM D412 / ISO 37; cured 7 days at 25 deg C |
| Shore hardness | 75 to 80 | Shore A | ISO 868; cured 7 days at 25 deg C |
| Joint movement capability | 10 to 15 | % | Installed joint width |





















