|
Calfe Crimmings supply and install
- Hopper resin based plasters from the USA
- Algalite lime based plasters from Italy.
Materials
- Hopper finishes consist of 100% pure polymers, colourants, finely ground marble dust, fine silica sands mixed with cement and binders.
- The Algalite plasters consist of aged lime-putty, selected inerts (marble dust, mica), earth pigments and rheologic modifiers.
Substrates
- Acceptable substrates include drylining / plasterboard (taped and sanded ready for paint), masonary, concrete, plaster and wood. Additional substrates may subject to special preparation before plasters are installed.
- All substrates must be dry and dust free prior and during application
- Substrates other than those listed shall be approved by Calfe Crimmings.
- Contractors should check with Calfe Crimmings the suitability of the substrate prior to commencement of its installation.
Finishes
- All finishes are hand trowel applied.
- No expansion joints are required for the finishes unless needed for the substrate.
- Hopper and Algalite finishes are suitable for interior and exterior use.
- All plasters can be used in wet areas.
- For exteriors the substrate should be waterproof cement render
- Wax finishes may only be used internally
- All finished surfaces are treated with Algachem solution. This dries to a micro-porous finish enabling the plasters to breath yet still providing an impact resistant surface which is washable and easily maintained.
- Drying time between application of plaster coats is normally 24 hours.
Quality Assurance and Conditions
- All finishes are only supplied and installed by Calfe Crimmings.
- Samples are provided for approval during specification
- Where required an on-site test area may be recommended for approval prior to commencement of work
The use of natural materials and hand crafted application requires specific on-site conditions to reproduce the sample finishes used in the specification process - details of these conditions are set below.
- Substrates must be completely prepared prior to site attendance.
- Any plasterboard, dry lining system, MDF sheeting and the like intended to form a substrate for our finishes must be fixed and prepared in accordance with the manufacturers recommendations.
- All substrates to be finished by us should be flat true to line and plane and it is the responsibility of the Main Contractor/Client to prepare all such surfaces including the removal of all nibs, fins and mould release agents. Surfaces should be free from dust/grit. Our prices do not include for the feathering or dubbing out of the background imperfections. Hopper and Algalite material finishes are 2-4mm thick and will not tolerate substrate imperfections.
- The Main Contractor / Client shall provide, free of charge, lighting of a level sufficient for the efficient completion of our works to the required standard. Where possible, this should be the lighting intended for the building when in use.
- We do not require vacant possession of areas to be complete in Hopper or Algalite materials, however we do require reasonable access to execute our works without interruptions from other trades.
- It is advisable that Hopper and Algalite materials are installed as late in Main Contractor's programme as possible, and certainly within the decorative finishes programme.
|
