Herculite Fibrefix is a formulated hemihydrate plaster (CaSO4.1/2H2O) produced from naturally occurring high purity gypsum mineral. It is off-white in colour. It is used for fixing of fibre reinforced plaster work including cornices, ceiling roses and GRG sections. Also suitable for filling and 'making good'.
Extended working time makes it suitable for on site use
Strong contact adhesion
| Chemical Properties | |
|---|---|
| Chemical Composition | CaSO4.1/2H2O |
| Chemical Name | Calcium Sulphate Hemihydrate |
| Colour | off-white |
| Physical Properties | |
|---|---|
| Compacted bulk density (kg/m3) | 1100 |
| Loose bulk density (kg/m³) | 700 |
| Particle Size (% weight retained) |
2% at 90 µm 5% at 63 µm 25% at 32 µm |
| Setting Parameters | |
|---|---|
| Final setting time (minutes) | 100 |
| Initial setting time (minutes) | 90 |
| Plaster to Water Ratio | |
|---|---|
| Plaster to water mix ratio (by weight) | 100/55 |
| Plaster to Water Ratio (by weight) | 1.82:1 |
| Water to plaster ratio ( by weight) | 55% |
Ensure all wall and ceiling backgrounds are sound, clean and dry. Remove any wallpaper from background surfaces. Painted and decorated surfaces should be scratched to form a key and dampened to remove any dust and loose material. For best adhesion to all backgrounds, prime the area with a bonding agent before application.
Ensure all tools are clean and free from contaminated materials and always mix in a well ventilated area. Please use with the recommended plaster to water ratio, with a mixing time of approx. 2 to 4 minutes or with until mixed to a smooth paste. The plaster to water can be adjusted to suit the individual application, however changes to plaster to water ratio will influence product performance particularly setting time and strength.
Apply sufficient Herculite Fibrefix to Cove or Cornice to ensure good overall contact with the background. Press firmly into place and then remove any excess adhesive and use it to "make good" any mitres/joints.
Packaging available : 25 kg
Shelf life : 6