STEEL IT Polyurethane System

Anti-corrosion for industrial applications

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

Technical Data


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
1002

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
2203

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.