Special Effect Range
Introduction
These specialised products have been formulated to provide a range of
aesthetically appealing effects whilst offering a high degree of toughness
and the ability to hide substrate defects. In general they are not suitable
for severe environments, due to film thickness variations consequent
on the degree of 'structure' built into the film. Becker Powder Coatings'
attention to particle size control and formulation ensures optimum transfer
efficiency.
Types Available and Gloss Levels
| Textures | Full gloss, semi-gloss or matt |
| Hammers | Full gloss and semi-gloss |
| Antique | Full gloss and semi-gloss |
| Wrinkle | Semi-matt |
* Gloss levels are described visually, as true measurement is not feasible.
Colour
Wide range available ex stock or to order, depending on product type.
Film Properties
Meets the following criteria:
| Mandrel bend | BS3900 E1 | Pass 13mm |
| Scratch | BS3900 E2 | Pass 2kg |
| Impact | ASTM D2794 | Pass 60in/Ib |
| Adhesion | BS3900 E6 | No detachment |
* Substrate used in obtaining performance data was 20-gauge mild steel pre-treated using a medium weight zinc phosphate.
Heat Stability
Dependent on type. Heat-resistant versions of these products can be formulated in most cases.
Specific Gravity
1.3 – 1.8 depending on type, colour, gloss, and other properties.
Coverage
8 - 11 sq.m/kg @ 70 microns (100% utilisation assumed), depending on colour and gloss.
Film Thickness
Recommended 70-100 microns for most applications, depending on type.
Curing Conditions
| Wrinkle | 200°C/8 mins. to 170°C/15 mins. object temperature |
| Texture, Hammer and Antique | 180°C/10 mins. object temperature, typically, but refer to product data for details. |
Storage and Handling
Store in dry, cool conditions, preferably below 25°C. Shelf life under these conditions will be approx. 12 months. For full information on handling this product type, refer to individual Safety Data Sheet, and the ‘Code of Safe Practice' issued by the British Coatings Federation.
Pre-treatment
Becker Powder Coatings' Special Effect powders adhere to most metals and do not require primers. Articles to be coated must be free from rust, grease, oil and mill scale. Solvent vapour degreasing is usually adequate for interior applications, however in order to improve corrosion resistance the use of iron phosphate or zinc phosphate is strongly recommended. Aluminium should be pre-treated using a chromate conversion system prior to powder coating. Zinc based die-castings and Zintec should also be pre-treated.
Our technical service department will be pleased to offer further advice on this subject if required.
Application Guidelines
Becker Powder Coatings' Special Effect powders are suitable for use with all electrostatic powder spraying equipment. Voltages between 30-100kV may be applied. The powder is sprayed electrostatically onto earthed metallic substrates and an even layer of powder is deposited. When subjected to the correct temperature, the powder melts and flows to form a continuous film before curing, resulting in a coating with excellent mechanical properties and chemical resistance.
| Individual Product Information |
| Reference number |
| Colour |
| Gloss level |
| Specific gravity |
| Stoving schedule |
| Film thickness |
| SDS No |
| Health & Safety |
| We recommend all users of powder
coatings to refer to the Code of Safe Practice: Application of Powder
Coatings by Electrostatic Spraying (published by the British Coatings
Federation of Great Britain Ltd) and our appropriate Health &
Safety data sheet. May
00 |
| The information on this sheet is based on experience
or tests in the laboratory and is published in good faith in the
belief that it will be of value. We can accept no responsibility for loss or damage which may result from accident, misuse or operations not under our direct control. |
