Premix GRC Sills
QA Certificate
Certificate type
Glass fibre reinforced concrete premix, for the formation of window sills.
For use in the formation of window sills.
This mix can also be used in a number of different forms including copings, columns and garden features - consult manufacturer for details.
Please note, this mixture is not suitable for large sections or cladding panels.
Glass fibre reinforced concrete premix, for the formation of window sills.
Features and benefits:
- Offers higher flexural strength properties than other architectural dressings and decorative features produced using traditional semi-dry or wet cast production methods.
- Versatile: Can be produced into a range of bespoke shapes and sizes.
- Fire-resistant.
- Lightweight.
- Offers increased impact resistance and high durability due to the reinforcing fibre distributed throughout the matrix.
- Available in a range choice of three colours.
- Meets/ exceeds the GRCA Specification 'Specification for Manufacture, Curing and Testing of GRC'.
- Manufactured under a BSI accredited Quality Management System to ISO 9001: 2015.
- Full UKAS accredited testing to ISO 17025: 2017.
Color | Range of three colours. |
Features | Offers higher flexural strength properties than traditional semi-dry or wet cast concrete |
Finish | Pre-finished |
Material | Highly cement based composite manufactured from white cement, silica sand, admixtures and additives reinforced with alkali resistant glass fibre |
Shape | Can be produced to bespoke shapes/ designs. |
Size | Can be produced to bespoke sizes |
Uniclass 2015 | |
CAWS | H40/120 GRC components H40/130 Proprietary GRC components |
Standard | GRCA Specification for the manufacture, curing and testing of glass fibre reinforced concrete (GRC) products |
Production method | Premix process in accordance with GRCA Specification 2017 |
Guide mix design | Grade 8P |
Configuration | Insert requirements. |
Sill type | Insert requirements. |
Masonry facing type | Insert requirements. |
Dimensions | - |
Height (overall) | Insert requirements. |
Clear opening width and overall length of stooled sills for fair faced masonry | Insert requirements. |
Clear opening width and overall length of stooled sills for rendered masonry | Insert requirements. |
Length of slip sills | Insert requirements. |
Exposed faces | - |
Surface texture | Insert requirements. |
Colour | BathPortlandSherwood |
Applied surface finish | Pre-finished |
Product Reference | Premix GRC Bay Window Sills |
Flexural strength | After 28 days (LOP): 5 MPa. After 28 days (MOR): 8 MPa to EN 1170-5 |
Dry density | 1850 kg/mᶟ to EN 1170-6 |
Water absorption | 9% to EN 1170-6 |
- GRCA: Full Member Certificate: 1097/32