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Tuff Coat Polymers  

LCF Wash Primer - LCF Wash Primers

 
Introduction :

This particular specification covers ‘Etching Primer-Lead Chrome Free’ used specifically for engineering units. It covers detail properties of product, advantages, application techniques & MSDS of product.

This is a two-component system (2k system) Base component containing Polyvinyl Butyral resin with anticorrosive pigments which are Lead Chrome Free. Polyvinyl Acetal Resin say Polyvinyl Butyral one gives excellent water resistance through its paraffin structure while dioxin link molecules of six atoms give rise a noticeable chemical resistance.

LCF Wash Primer is also known as “LCF Etch Primer” compared with other corrosion inhibiting materials, they are unique & most effective because they offer in a single treatment several means of preventing corrosion without using lead chrome (Hazardous Pigments).
It gives excellent adhesion to many substrates, faster drying is also advantageous. Better achievement is DFT & Opacity than normal Etch Primer. For heavy structures; where total Surface Treatment (Dip Phosphating) is not possible, this system is always helpful.

The range of Application :
This primer is used for storage Tanks, Ships, Airplanes, Bridges, Agricultural equipments, Aluminium Castings, M.S., S.S. equipments, FRP, ABS Plastics and so many. This LCF Wash primer is applied in all cases where Paint Coating require weathering, sea water resistance & on damp metallic surfaces.
Key Properties of System :
Leas Chrome Free Primer- as per environmental conditions.
Faster drying at room temperature.
It can withstand up to 350o C.
Phosphating can be eliminated from pretreatment.
For mild rusting, no sand rusting is required as little particle of rust also get converted into mg phosphate ion
Excellent water resistance.
Adhesion to many substrates like Aluminum, Plastics, Steel, and M. S.
After this priming welding is possible.
Better opacity with higher DFT than regular Etch Primer.
Excellent as undercoat for many systems like Epoxy, PU & Synthetic Enamels.
Unaffected by Oil & Grease.
Product Data :
Type
Two packs cold or at low temperature curing System
1) Base
Based on PVB Resin with lead chrome free anticorrosive pigments, off white or grey in Colour, having good consistency.
2) Hardener
Very thin & clear with acidic in nature
Mixing ratio
1: 1 By Volume
Mixing Viscosity @ 30° C
around 15 to 25 sec By F/C no. 4
% N.V.M of system
16-20
Density of Mix
0.9 gm/cc
Pot life of mix. @27°C
3-4 hours minimum (Do not use after 4-hrs.adhesion defect may occur)
Application
By spray, Brush
Recommended DFT
10 – 15 microns per coat.
Theoretical spreading rate
12. - 14 m2 / lit.
Drying Time
Touch Dry
10- 15 minutes
Hard dry
2 – 3 hours.
Over-coating interval
After 15 minutes before 6 months
Flash Point
below 22o C.
Film Colour
Off white/ Grey
Finish
Matt
Temperature Resistance
10o C to 350o C.
Thinner/ Cleaner
Thinner Wash NC-102
Outside Exposure        
It will protect the surface up-to one to six months approximately. It is always recommended to apply Top Coat over Was Primer.
Storage life individually (Shelf Life)
up to 1 year as long as the sealed containers are kept in dry place.
Effect under welding

It can be applied on metals, which have Sub-Sequent to be welded. It leaves little ash and will cause no obstruction in the weld. It gives off no obnoxious Fumes of welding.

Toxicity
Only spray vapors are acidic & protection of operator is desirable. It can be controlled by good ventilation. Operator should use mask & goggle while spraying. Mild irritation to skin in wet condition

 

Direction for Use/ Application :
Efficient degreasing must be done. If there is heavy rusting on M. S. use de-rusting chemical. No other treatment is necessary. Stir base component thoroughly before mixing. Take equal parts of Base Hardener in a container. After mixing allow it to mature for 15-20 minutes and then stir before use. It is particularly important that film thickness should not exceed more than 8 microns. So application by conventional spray is advisable. Application by brush, spray or roller is also possible. No thinner should be added while spraying.
M.S.D.S.
Flash point
Below 22 ºC
Flammability
Fire risk due to presence of low boiling point solvents
Toxicity
Toxic for PU paint when baked. Mild toxic for others
Handling
Provide all flameproof electrical connections in spraying booth and storage.
Keep away from source of ignition.
Wear safety goggles, rubber gloves, masks and protective clothing.
Avoid direct contact to skin for longer time.
Provide proper ventilation in spraying booth.
Emergency measures
Rinse with water and clean with thinner after contact with skin.
Wash eyes with water. Use eye drops. Contact physician.
Vomit if fumes inhaled. Consume milk / eatables as necessary.
If caught fire use DCP / CO2 / ABC type fire extinguisher.
If paint drums leaks, absorb it in sand and then burn.
Storage
Keep in cool place and away from heat, ignition. Ensure flame proof electrical fittings in storage area.
Disclaimer
The information contained herein is believed to be accurate and is offered in good faith for the guidance of the consumer. We cannot accept any responsibility for errors / mishaps since conditions under which our products may be used are beyond our control.
 
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