Painted Aluminium Coil for Caravans

Signi Coat produces a range of coils and sheets specifically designed for this demanding end-use and has been a major supplier to the caravan industry for many years. Signi Coat takes pride in supplying products based on environmentally friendly raw materials.

Material specification
The alloy used for caravan sheet is commonly in the 3000-series, mainly in the 3003 and 3105 range. Temper is selected to satisfy the roll forming, folding and other fabricating requirements associated with caravan construction, mainly in H44 temper,, and thickness normally ranges from 0.8mm upto 1.5mm, normally 1.0mm.

Alloy: 3003 and 3105
Temper: H44
Thickness normally ranges from 0.8mm upto 1.5mm, normally 1.0mm.
Color: front side normally white wash color with high gloss, back side normally clear lacquer.

Signi Coat ’s unique pre-treatment is used prior to the primer and topcoat paint system. The pre-treatment is an alternating current anodizing in sulphuric acid electrolyte. The process produces a clean surface with a thin aluminium oxide film. This film is an integral part of the aluminium surface and is flexible due to its porous structure. This pre-treatment prepares the surface for excellent paint adhesion and corrosion resistance of the painted products. The pre-treatment is non-toxic and does not contain any chromium or heavy metal based chemicals and, therefore, underlines Signi Coat’s environmental friendly profile. The front side coating used is normally high gloss. The reverse side coating is normally a clear lacquer which has been designed for use with the types of adhesive used in bonding caravan sides. In these cases care should be taken to ensure that the Signi Coat lacquer is compatible with the specific adhesive to be used in practice. Samples can normally be provided for these evaluations. The reverse coating is equally a protector to the front coating, reducing the risk of pressure and metal marking, and acting as a lubricant in the forming process. Stucco embossing is available on request.

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