STEEL IT Polyurethane System
The one-component polyurethane system is composed of primer type 2203 and finish coat type 1002.
2203 primer is a combination of modified alkyd resins, selected silicates and iron oxides where AISI 316 L stainless steel micro flakes of various sizes have been embedded.
It contains no chromates.
1002 finish coat is a blend of polyurethane resins containing the same AISI 316 L stainless steel micro flakes.
PROTECTION
From severe atmospheric corrosion, sea water, industrial fumes, food acids, syrups, distilled and fermented products, crude oil by-products, hydraulic fluids, weak acids and alkalis, high pressure wash downs.
USES
Steel structures, industrial machines, packaging and wrapping lines, vehicles, gangways, tanks, cranes, towers, marine on-deck works. The polyurethane Steel it coated part can bear strong bends without cracks or exfoliations.
2203 primer is considered to be the best antirust paint, thanks to its stainless steel flakes high content. It can be over painted in any colour with alkyd based commercial paints.
SURFACES
Steel, aluminium, copper and other metals, pig iron, wood, textiles, plasterboard, some plastics.
PREPARATION
For light conditions of use: treat with a hand or electric metallic brush, after completely removing dirt, grease, oil and every other pollutant.
For severe conditions of use: sand blast to SA 2½ with sharp and angular profile 40-50 µ deep.
THICKNESSES
Light conditions of use:
1 coat of primer 2203 at 63 µ dry /165 µ wet
1 coat of finish paint 1002 at 63 µ dry/ 225 µ wet
Severe conditions of use:
1 coat of primer 2203 at 63 µ dry /165 µ wet
2 coats of finish paint 1002 at 63 µ dry/ 225 µ wet each coat
Note: Film thickness on sand blasted surfaces should be measured up from the peaks of the anchor pattern
APPLICATION
– Conventional spray gun with vertical reservoir, nozzle 1, 2 – 1, 4 mm. nozzle pressure 4 – 4,5 bar.
– Airless gun pump ratio 28:1 nozzle size 0,4 – 0,5 mm.
– Brush. Roller.
– Do not apply by dipping.
Clean tools (especially nozzles) immediately after use with a commercial solvent.
Note: The stainless steel flakes tend to make a deposit on the bottom of the can and therefore we recommend stirring the product frequently before and during application. A possible presence of small lumps due to stocking time is normal; they can be eliminated easily by accurate stirring.
We strongly recommend using a low speed electric mixer in every stirring operation in order to obtain the best adhesion and protection results.
Note: do not mix primer and finish paint together.
THINNING
Not recommended. The addition of a thinner might loosen the resin/flakes molecular matrix, thus lowering the anti corrosion properties of the system.
DRYING TIME
Primer 2203: touch dry after 1 hour – over coating after 4 hours
Finish coat 1002: touch dry after 2 hours – over coating after 24 hours
Note: It is not recommended to dry the paint in the oven, as a too fast evaporation of the solvents would not allow the flakes to form a solid surface.
SERVICE
The complete system can be put into light service after 24 hours. Complete curing with achievement of maximum hardness and protection occurs in 5 to 10 days.
COVERAGE
Theoretical coverage:
primer 2203: 6,14 sm/lt at 63 µ dry
finish coat 1002: 4,40 sm/lt at 63 µ dry
Note: Practical coverage can be 10 – 25% lower than the theoretical one according to working conditions, surface shape and application method.
TEMPERATURE
Maximum working temperature: 94° C
CONDUCTIVITY
1002 finish coat is not electrically conductive.
LIMITATIONS
Minimum application temperature 5° C for both working place and surface to coat. Relative humidity less than 86%.
Temperature of the surface to coat at least 9° C over dew point (to calculate this value please refer to table A).
CAUTIONS
Use breathing mask for spray applications.
Apply only in well ventilated areas.
Use hand protection gloves.
Do not swallow, do not breathe aerosols.
A detailed safety data sheet is included in every parcel and is available upon request.
CHEMICAL RESISTANCE
Occasional contact
|
Frequent contact
|
|
---|---|---|
Caster oil
|
Sunflower oil
|
Detergent
|
Linseed oil
|
Peanut oil
|
Acrylic emulsion
|
Fish oil
|
Turpentine
|
Fresh water
|
Aqueous alcohol 40%
|
Wine
|
Distilled water
|
Alum. sulphate 20%
|
Ethyl alcohol
|
Sea water
|
Hexane
|
Kerosene
|
Vaseline
|
Gasoline
|
Brine
|
|
VM&P Naphtha
|
Diesel fuel
|
|
Ethylene glycol
|
Glucose
|
|
Glycerine
|
Fruit juice
|
STEEL IT
1002
|
STEEL IT
PRIMER 2203
|
|
CPS viscosity:
|
640
|
640
|
Colour:
|
Metallic (*)
|
Red
|
Sheen:
|
Low gloss
|
n.a.
|
Total solid: by weight
|
49%
|
65%
|
Total solid: by volume
|
28%
|
38%
|
Shelf life:
|
1 year
|
1 year
|
V.O.C.: gr/litre
|
464
|
487
|
Weight per gallon: kilos
|
4,25
|
5,35
|
(*) See colour chart | V.O.C. = volatile organic compounds
PACKING |
||||
Product |
Code |
Unit Litres |
Units per Box |
Weight per box Kilos |
STEEL IT |
ST.1002 B |
0,400 |
12 Aerosol (*) |
7,25 |
ST.1002Q |
0,945 |
6 Cans |
7,7 |
|
ST.1002G |
3,780 |
4 Cans |
20 |
|
PRIMER |
ST.2203Q |
0,945 |
6 Cans |
9 |
ST.2203G |
3,780 |
4 Cans |
23 |
(*) Used for touch ups and limited works and only for light conditions of use.