Megapoxy P1 is a non-sag, two-part epoxy paste for structural concrete repairs, gap filling and bonding steel, stone and precast elements. Its very low-VOC formulation complies with AS/NZS 4020:2018 for use in structures in contact with drinking water.
Use P1 to fill concrete spalls, repair pipe and tank surfaces, bond precast sections and protect exposed reinforcement. Its paste consistency stays in place on vertical and overhead faces, while resistance to hydrogen sulphide makes it particularly relevant to sewage infrastructure.
Choose P1 where potable-water contact or sewage exposure matters and a 60-minute working time helps with positioning. Megapoxy PM is a versatile non-sag paste for general construction bonding; Megapoxy PF is the rapid-setting choice for urgent small repairs.
Prepare clean, sound concrete or bare metal, then mix equal volumes of Parts A and B until uniform. Working time is 60 minutes at 25°C. Minimum cure is 24 hours at 25°C; full cure is four days at that temperature. Do not apply below 10°C.
Can Megapoxy P1 be used in drinking-water structures?
Yes. Megapoxy P1 complies with AS/NZS 4020:2018 for use in repairs to structures in contact with drinking water.
What makes P1 different from Megapoxy PM or PF?
P1 combines a non-sag paste with potable-water compliance, hydrogen-sulphide resistance and a 60-minute work time. PM offers general-purpose bonding; PF sets much faster.
How long does Megapoxy P1 take to cure?
At 25°C, minimum cure is 24 hours and full cure is four days. Lower temperatures extend the cure schedule.
| Property | Value |
|---|---|
| Tensile Strength | 25 MPa |
| Compressive Strength | 80 MPa |
| Flexural Strength | 43 MPa |
| Bond Strength | >3 MPa |
| Pot Life | 60 minutes |
| Full Cure | 4 days at 25°C |
| Application Temperature | 10°C |
| Service Temperature | 80°C |
| Mixing Ratio | 1 Part A to 1 Part B |
| VOC Content | Nil |
| Modulus | 2.9 GPa |
| Shore D Hardness | 75 |
| Surface Resistivity | $10^{12}$ |
| Volume Resistivity | $1.76 \times 10^{11}$ |
| Coefficient of Thermal Expansion | $59.0 \times 10^{-6}\text{ mm/mm/°C}$ |
| Water Vapour Transmission | 0.000 ($\text{gram/hr m}^2$) |
| Water Resistance | 0.067 Increase in weight (%) |
| Compressive Strength at Yield | 55 MPa |
Here are some common examples on where Megapoxy P1 used by our customers.
