Epoxy Zinc Rich Primer
Introduction
Recommended for use as an anti-corrosive primer where good-quality chemical conversion pre-treatment is recommended or specified but may not be available. Intended to be overcoated with a suitable product from our range of coatings, depending on the end-use application. We recommend that the primer should be partially cured prior to application of the topcoat. The substrate must be in a clean, rust-free condition prior to application of the primer. Film thickness of the primer coat should be controlled to assist application of the second coat: trials are recommended to optimise application conditions. Colour Grey
Specific Gravity
2.00
Film Properties
Meets or exceeds the following criteria:
| Mandrel bend | BS3900 Pt E1 | Pass 13mm |
| Scratch resistance | BS3900 Pt E2 | Pass 4kg |
| Impact resistance | BS3900 Pt E3 | Pass 50 in/Ibs |
| Adhesion | BS3900 Pt E6 (2mm) | No detachment |
| Salt fog resistance | ASTM B117 (1000hrs) (plain mild steel) | Max 0.5mm creep |
| Humidity | BS3900 Pt F2 (1000hrs) (plain mild steel) | No blistering |
Curing Conditions
Recommended minimum cure schedule 180°C (5 mins at object temperature for partial curing or 10 mins if required fully cured).
Film Thickness
Recommended film thickness range for optimum performance is 45-55 microns.
Application
May be applied through most currently available equipment. Tests should be carried out to ensure suitability prior to full-scale application. Subsequent topcoats may require modified application conditions, e.g. lower voltage.
Pre-treatment
Becker Powder Coatings' Zinc Rich Primer adheres to most metals and does not require other primers. Articles to be coated must be free from rust, grease, oil and mill scale. Solvent vapour degreasing is usually adequate. Phosphate or chromate conversion coatings may be used if even greater corrosion protection is specified.
Our technical service department will be pleased to offer further advice on this subject if required.
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.
| Individual Product Information |
| Reference number |
| Colour – grey only |
| Gloss level – semi-matt only |
| Specific gravity – 2.0 |
| Stoving schedule – 180°C/5 mins for partial cure |
| 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. |
