A1 has many unique properties. These contribute to its strength, durability, weight to strength ratio, nontoxic, easy to manufacture and its ability to comply with many of the necessary test requirements of the construction industry, specifically those in regard to performance to fire and performance under impact.
A1 has a low toxicity both in its component parts and in its manufacturing process. Its potential use is wide-ranging and could effectively replace much GRG, GRC and GRP in many of the situations where those materials are now used, both in- and outdoor. In comparison with GRC, A1 offers much greater versatility as a panelized cladding system in that the manufacturing tolerance can be much tighter.
A1 possesses a high resistance to ultraviolet degradation. It can, therefore, be used in the situation where other materials would suffer.
Special or ‘one-off’ units can be easily produced alongside standard run and if site tolerances have not been strictly observed the panels can be ‘humou-red’ to fit and made good on site. Of great significance is the material’s high strength to weight ratio, which allows much lighter fixing systems and sub-grids.
All these attributes contribute towards further potential savings having started with a material, which has already cost advantages over alternatives.
A1 should be viewed as a matrix in which a variety of filler materials can be incorporated, either to enhance mechanical performance or for the sake of appearance. It is possible for A1 to include any non-reactive filler up to, and in some cases exceeding 200%. This allows a great deal of free-dom when deciding upon encast and ex-mould finishes.
An extensive and impressive range of finishes has been produced. These include a variety of metals (bronze, brass, copper and stainless steel), pigmented materials imitating terra-cotta, brick and pottery and encast stone finishes from white marble through to dark granite, Portland and Bath stone. It is thus possible to create a finish to meet the designer’s speci-fication rather than, as is usual, the designer having only two or three establishedfinishes from which to make a choice.
The standard finishes that can be produced are extremely; high, both in their resemblance to the materials that they are imitating and in the quality of the surface finish.
A wide variety of finishes can either be incorporated into the material as a facing in the mould, where this is going to be backed up by a lamination or other composite foam material, or they can be included in the mix if the material is being used as solid cast. The method of manufacture obviously varies from situation to situation depending upon the design.
A range of fine textures and colours can be further produced. These inclu-de leather and cloth through this speci-alised process.
A1’s excellent weight-to-strength ratio means that when used as a lamination the designer is allowed greater free-dom to produce large panels incor-porating, if required, complex and fine details. When this is considered in combination with the ease of fixing and calculation of load, A1 can be seen as a major step forward in pushing back the boundaries of design limitation..
The surface finish of A1 is extremely durable and will withstand aggressive use. For public areas, the material can be treated post-mould with an anti-graffiti coating which allows for the removal of paint, crayons, pens, etc. In normal maintenance conditions, the material can be simply washed with detergents and water or, if requi-red, with stronger substances such as solvents, with no detriment to the surface finish.
|Mixing ratio (1:2)||1 part A1 Liquid
2 parts A1 Powder
|Colour||creamy white, non-transparent. The colour of A1 can vary slightly with every production batch.|
|Density (wet)||1.75 kg / dm3|
|Density (dry)||1.66 kg / dm3|
|Processing time||20-25 minutes|
|Demoulding time||approx. 1 hour|
|Hardness||80º Shore D|
|Expansion during hardening||0.1 – 0.6%. An additive is available to reduce expansion|
The peak temperatue of A1 during curing is about 40oC – 45oC. Even for larger volumes of A1 this temperature will be in the same range.
Not food approved
We do not have a food approval certificate for A1.
During curing A1 will expanded between 0,1% ad 0,6%. The biggest advantage of this expansion is that A1 will make a perfect copy of the mould you are using by copying every (tiny) detail. This is the reason why A1 will feel and look like the original.
When using a polyester, metal or another stiffmaterial mould be aware that this needs to be self-releasing.
For A1 objects that need to be dimensionally stable use high shore silicone moulds or stiff material moulds.
We recommend to use a high temperature wax system as a release agent for your moulds as we have discovered that these give the best results. Silicone moulds normally do not need a release agent.
A1 has a creamy white colour after curing and is non-transparent.