STEEL IT Epoxy System

The two-component epoxy system is composed of primer type 4210 and finish coat type 4907.

Both 4210 primer and  4907 finish coat consist of a blend of  two-component polyamide resins where AISI 316 L stainless steel micro flakes of various sizes have been embedded.

PROTECTION                 

Against corrosion from light and strong alkali, solvents, detergents and chemical products, sea water, impacts and abrasion.

USES                                    

Industrial mills and machines, packaging and wrapping lines, pumps, valves, slides, vehicles, etc.
The finish coat type 4907 is approved for contact with drinking water.

SURFACES                        

Steel, aluminium, copper and other metals, cast iron, wood, fibreboard, tiles, glass, ceramic, masonite, and fibreglass.

PREPARATION              

For light conditions of use: treat with a hand or electric metallic brush, after completely removing dirt, grease, oil and every other pollutant. Preferably sandblast to SA 2 or 2½. For severe conditions of use including chemical agents: sand blast to SA 3 with sharp and angular profile 40-50 µ deep.

THICKNESSES

Surfaces exposed to light atmospheric or chemical agents:
1 coat of 4210 primer   at 76 µ dry /150 µ wet
1 coat of 4907 finish paint    at 76 µ dry /200 µ wet
Surfaces in immersion service or exposed to strong chemical agents:
1 coat of 4210 primer   at 76 µ dry /150 µ wet
2 coats of 4907 finish paint  at 76 µ dry /200 µ wet each coat

Note: Film thickness on sandblasted surfaces should be measured up from the peaks of the anchor pattern

APPLICATION

– Conventional spray gun with vertical reservoir, nozzle 1,6 – 1,8  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.

MIXING                             

Stir with care the two A and B components separately, then mix them accurately in a clean container with the mixing ratio 1:1 by volume (the two components have different specific gravity so that a mixture by weight would give unacceptable results). Let deposit for 30-45 minutes, stir again and filter if necessary to eliminate possible lumps.
Apply within 6-8 hours maximum.
We strongly recommend using a low speed electric mixer in every stirring operation in order to obtain the best adhesion and protection results.

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 and finish coat:       touch dry after 2 hours – over coating   after 12 hours
handling strength 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 36 hours. Complete curing with achievement of maximum hardness and protection occurs in 6-7 days.

COVERAGE

Theoretical coverage:
primer  4210:           6,14  sm/lt  at  76 µ  dry
finish coat  4907:     4,90  sm/lt  at  76 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

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

Immersion service
Occasional contact
Frequent contact 
Caster oilWineOleic acid
Sunflower oilButyl acetateFruit juice
Linseed oilEthyl acetateGasoline
Peanut oilAcetoneCaustic soda 20%
Fish oilPhosphoric acid 50%Aqueous alcohol 40%
Distilled waterNitric acid 10%Alum.sulphate20%
Fresh waterSulphuric acid20% Vaseline
Sea waterMethyl alcoholAmmonia
TurpentineButyl alcoholBenzene
DetergentsEthyl alcoholToluene
Diesel fuelTrichloroethyleneXilene
Acrylic emulsionMethyl Isobutyl Ketone
Ethylene glycolEthyl glycol
Glycerine
Glucose
Hexane
Kerosene
VM&P Naphtha
Brine

 

Technical Data

STEEL IT
4907
STEEL IT
PRIMER 4210 
 CPS viscosity:
1216
552
 Colour:
 Metallic (*)
Grey
 Sheen::
 Low gloss
n.a.
 Total solid: by weight
 50%
 60%
 Total solid: by volume
 36%
 50%
 Pot life:
6 – 8 hours
 6 – 8 hours
 Shelf life:
(not mixed components)
 1 year
 1 year
 V.O.C.: gr/litre
 446
425
 Weight per gallon: kilos
 8,6
9,6

(*) See colour chart | V.O.C. = volatile organic compounds

 

 

PACKING

Product

Code

Unit Litres

Units per Box

Weight per box Kilos

STEEL IT
4907

ST.4907 Q

0,945 A
0,945 B

3 Kits

7,7

ST.4907 G

3,780 A
3,780 B

  2 Kits

20

PRIMER
4210

ST.4210 Q

0,945 A
0,945 B

3 Kits

9

ST.4210 G

3,780 A
3,780 B

2 Kits

23

Note: every unit includes one component A and one component B

 

Download Technical Sheet