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HMG Chromate Free Etch Primer is a quick drying chromate free etch primer providing good anti corrosive properties and excellent adhesion to ferrous and non-ferrous metals.
This product MUST be purchased/used in conjuction with its manufacturer specified base or activator when used as a wash primer:
2-Pack System Details | |||||
---|---|---|---|---|---|
Base (Part 1) | HMG Chromate Free Etch Primer | ||||
Activator (Part 2) | HMG 2K Etch Activator KR08 |
- One part of a two part system when used as a wash primer
- Chromate free
- Ease of use
- Quick drying
HMG Chromate Free Etch Primer is a quick drying chromate free etch primer providing good anti corrosive properties and excellent adhesion to ferrous and non-ferrous metals.
Please note this product is one part of a two-pack system which MUST be purchased/used together with HMG 2K Etch Activator KR08 when used as a wash primer.
Click To Jump To Section:
- Features & Benefits
- Product Specification
- Film Thickness Range And Coverage
- Drying Times
- Surface Preparation
- Application Methods
- Product Notes
- Health & Safety
Features & Benefits
- Chromate free
- Ease of use
- Quick drying
It can be used as a 1 pack when mixed with thinner 2691 or 2711, or as a 2 pack wash primer when mixed with HMG 2K Etch Activator KR08 (see application details).
Product can be overcoated with most HMG primers and can be used in conjunction with powder coatings.
It is no longer recommended to use an etch primer under an epoxy primer. Residual acid from the etch primer can interfere with the proper curing of the epoxy. This may lead to extended dry times, potential blistering, and even adhesion failure. So next time you are planning to paint bare metal with an epoxy, follow the recommendations on the datasheet and use the epoxy directly on the properly cleaned and sanded bare metal substrate.
Product Specification
Technical Data | ||||||
---|---|---|---|---|---|---|
HMG Chromate Free Etch Primer | ||||||
Volume Solids: | 47.0% | |||||
VOC Content: | 0.79kgs/ltr | |||||
SG: | - | |||||
Viscosity: | 580 mPas | |||||
Density: | 1.094 g/cm³ | |||||
Storage Conditions: | Store between 5°C - 25°C. When not in use, cans must be kept sealed. | |||||
Shelf Life: | 12 months from delivery date in original sealed containers. | |||||
Pot Life: | 4 hours | |||||
Flash Point: | 23°C |
Film Thickness Range And Coverage
Product Data | |||
---|---|---|---|
Dry Film Thickness | Wet Film Thickness | ||
Compliant Spray Gun: | 10 - 15 μm | - |
Coverage: 11 square metres per litre at 15 microns dft (Theoretical).
- HMG technical data sheets indicate a dry film thickness that will be achieved when applying a particular wet film thickness.
- These values are a guide only and are not to be used as specifications.
- Film thickness will vary depending on actual use and specification.
- Great care should be taken to achieve the dft stated in the agreed specification and to avoid areas of excessively low or high thickness.
Drying Times
Drying Times At 20°C | |
---|---|
Touch Dry: | 20 - 30 minutes |
Dry To Handle: | 60 minutes |
Fully Cured: | 24 hours |
Surface Preparation
- Ensure surfaces to be coated are dry and must be cleaned using the appropriate HMG product to remove all traces of contaminants.
- Read and follow the safety data sheet, product data sheet and label instructions.
- Stir all paints thoroughly before use.
- Always use the same batch number on the same job.
- Check colour & sheen.
- Filter the product immediately before use.
- Reduce emissions and maintain quality by replacing tin lid after use.
Application Methods
Technical Data | |||||
---|---|---|---|---|---|
Compliant Spray Gun | |||||
Mixing Ratio: | Base: 1 | ||||
Hardener for 2K: 1 | |||||
Base: 1 | |||||
Hardener for 1k: up to 20% | |||||
Hardener Options: | 2K Etch Activator KR08 | ||||
Thinner Options: | Thinner 2691 | ||||
Thinner 2711 | |||||
Viscosity: | 18 - 20 seconds B4 cup | ||||
Spray Gun Setup: | 1.4 - 1.8 | ||||
Number Of Coats (Guide Only): | 1 full coat | ||||
Flash Off: | 10 - 15 minutes |
For further information on mixing ratios please contact Rawlins Paints on Tech - 0113 2455450 (option 2) or [email protected] Sales - 0113 2455450 or [email protected]
Product Notes
Information On Basic Physical And Chemical Properties | ||||||
---|---|---|---|---|---|---|
HMG Chromate Free Etch Primer | ||||||
Form: | According to product specification | |||||
Colour: | According to product specification | |||||
Odour: | Characteristic | |||||
Odour Threshold: | Not determined | |||||
pH-value 20°C: | Not determined | |||||
Melting point/freezing point: | Undetermined | |||||
Initial boiling point and boiling range: | 108°C | |||||
Flash Point: | 23°C | |||||
Flammability (solid, gas): | Not applicable | |||||
Ignition temperature: | 390°C | |||||
Decomposition temperature: | Not determined. | |||||
Auto-ignition temperature: | Product is not selfigniting. | |||||
Explosive properties: | "Product is not explosive. However, formation of explosive air vapour mixtures are possible." | |||||
Explosion limits: Lower: | 1.0 Vol% | |||||
Explosion limits: Upper: | 12.0 Vol% | |||||
Vapour pressure at 20°C: | 12 hPa | |||||
Density at 20°C: | 1.094 g/cm³ | |||||
Relative density: | Not determined | |||||
Vapour density: | Not determined | |||||
Evaporation rate: | Not determined | |||||
Solubility in / Miscibility with water: | NOT MISCIBLE | |||||
Partition coefficient: n-octanol/water: | Not determined | |||||
Viscosity: Dynamic at 20°C: | 580 mPas | |||||
Viscosity: Kinematic: | Not determined | |||||
Solvent content: Organic solvents: | 19.4% - Water: 0.3% | |||||
Solids content: | 47.0% |
Health & Safety
- Refer to the safety data sheet in the attachments section above and tin label prior to use.
Data sheet
- Manufacturer
- HMG Paints Limited
- Water / Solvent Based
- Solvent
- For Use On
- Ferrous metals, Non-ferrous metals
- Application Method
- Spray
- Sheen
- Matt
- Colour
- Standard / Ready Mixed
- Single, Two or Three Pack
- Two-Pack
- Pack Size
- 5L
- Mixing Ratio
- Base: 1/Hardener for 2K: 1 - Base: 1/Hardener for 1k: up to 20%
- Touch Dry (at 20°C)
- 20 - 30 minutes
- Dry to Recoat (at 20°C)
- 60 minutes
- Fully Cured (at 20°C)
- 24 hours
- Pot Life (at 20°C)
- 4 hours
- Coverage
- 11 square metres per litre @ 15 microns dft (Theoretical)
- Recommended Thinner/Cleaner
- Thinner 2691/2711
- Density
- 1.094 g/cm³
- Solids by Volume
- 47.0 %
- VOC
- 0.79kgs/ltr
- Shelf Life (from date of manufacture)
- 12 months from delivery date in original sealed containers.
- Recommended Dry Film Thickness
- 10 - 15 μm
- UN Number
- UN1263
- Base Type
- Solvent-Based
- Suitable For Use On
- Ferrous Metals
- Suitable For Use On
- Non-Ferrous Metals
- Finish
- Matt
- Application Method
- Spray
- Product Usage Type
- Primer
- Colour Family
- Grey
Questions
Question about the product
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IMPORTANT SHIPPING & DELIVERY INFORMATION
HMG Chromate Free Etch Primer is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.
Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.
Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.
All delivery costs below are excluding VAT
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