Low friction coating
Two component, solvent free, pigmented polyamide cured epoxy, modified to improve slip factor.
Uses:
Lining of surfaces to prevent build-up of low abrasion materials, particularly in feed meal silos.
Advantages
- Brush applied low friction lining
- Greatly reduces build-up problems when storing fine powders, meal etc
- Allows free flow of materials along coated surfaces
- Easy to apply
- Economical
Properties of Wet Material
| Mixing ratio | Not advisable |
| Density (typical) | 1.22g/cm3 |
| Colour | Base: White Activator: Clear Finish: Gloss |
| Flash point: | +120 °C |
| Dilution | Do not dilute |
| Consistency | High viscosity liquid |
| Shelf life | 2 years from date of manufacture |
Properties of Dry Film
| Max service temperature | Dry: Ambient Immersion: Not recommended |
| Abrasion resistance (Taber) |
Using 2xCS 10 wheels loaded with 1000g each 112μm film loss. 45 μm after 1000 revolutions |
| Bond Strength | > 8.8 MPa |
| Toxicity | Cured material is inert and harmless |
| Water tainting | Will not taint water |
| Chemical resistance | Will resist vegetable oils |
Properties During Application
| Application by | Brush, short fibre roller |
| Pot life @25 °C | 40 min/500 ml |
| Volume solids | 100% |
| Recommended av. dft per coat | 125 μm |
| Theoretical coverage for above dft | 8 m./L on smooth surface |
| Wet film thickness at above | 125 μm |
| Maximum recommended wft | 150 μm |
| Practical coverage for estimating purposes | 6.5 m2/L |
| Recommended number of coats | 2 minimum |
| Curing time | Touch dry: 4 hrs Hard dry: 12 hrs Full cure: 7 days |
| Over-coating time @25°C | Minimum 12 hrs Maximum 48 hrs |
| Application temperature range | 10 °C to 40 °C |
|
Do not apply coating if humidity is in excess of 85% @ 21°C or 75% @ 10°C |
|
| Fire resistance of wet film. | Non-flammable |
| Equipment clean up | abe® super brush cleaner |
Surface Preparation
Steel should be grit blasted to a minimum standard of Sa 2 . on the Swedish Code of Practice SIS 0 55900.
Concrete should be free of all laitance and preferably should be lightly abrasive blast cleaned. All blemishes in the surface such as pop-outs, omegas, blowholes and honeycomb should be patched with epidermix® 201. This should be left overnight to dry and should be sanded smooth. Over-coating of epidermix® 201 should be carried out within 48 hours. All debris of preparation must be completely removed.
Priming
Steel should be primed with a coat of abecote® 384. If maximum smoothness of coating is required this may be overcoated with a coat of abecote® 386 which should be rubbed down after drying overnight. Concrete should be primed with a coat of abecote® 386. If maximum smoothness of coating is required, a second coat should be applied the following day, left overnight and then rubbed down. All debris of rubbing down must be completely removed.
Mixing
Stir contents of each container very well.
Add the Activator to the Base and stir together for at least 5 minutes using a flat paddle. It has been found that mechanical mixing gives better dispersion than manual mixing. A suitable mixing method would be a slow speed electric drill (approximately 200 rpm) fitted with a paddle.
If only part of a kit is to be used, add one volume Activator to two volumes Base. Measuring must be accurate and separate stirrers and containers used for proportioning each component.
Application
abecote® SF 321 must be applied to the primed surface within the over-coating time stipulated for the specific primer.
Application may be by brush or short fibre roller.
To achieve optimum finish the first coat of abecote® SF 321 may be rubbed down and then over-coated with a second coat.
At least seven days must elapse between applying the last coat and putting the installation into service
Shelf Life
Two years from date of manufacture.
Packaging
5 L dual pack tins.
Model Specification
The low friction coating will be abecote® SF 321, a two-component, filled, solvent free polyamide epoxy resin system, applied in accordance with a.b.e.® recommendations.
Health & Safety
Product safety information required for safe use is not included. Before handling, read product and safety data sheets and container labels for safe use, physical and health hazard information. The safety data sheet is available from your local a.b.e.® sales representative.
Important Note
This data sheet is issued as a guide to the use of the product(s) concerned. Whilst a.b.e.® endeavours to ensure that any advice, recommendation, specification or information is accurate and correct, the company cannot accept any liability for application – because a.b.e.® has no direct or continuous control over where and how a.b.e.® products are applied.
Further Information
Where other products are to be used in conjunction with this material, the relevant technical data sheets should be consulted to determine total
requirements.
a.b.e.® has a wealth of technical and practical experience built up over the years in the company’s pursuit of excellence in building and construction
technology.
Table
| The table below shows the coefficient and (angle) of friction for each of a selection of material surfaces and grain combinations. These results are comparative but show the efficacy of abecote® SF 321. |
| Barley | Grit Maize | Maize Chaff (flakes) | |
| Stainless steel | 0,26 (14,8°) | 0,30 (16,7°) | 0,30 (16,9°) |
| Steel | 0,38 (20,8°) | 0.61 (31,5°) | 0,51 (27,2°) |
| Plain concrete | 0,43 (23,4°) | 0,58 (30,2°) | 0,62 (32,0°) |
| abecote® SF 321 | 0,25 (13,9°) | 0,22 (12,1°) | 0.23 (13,1°) |