High temperature silicone formula

 

Against corrosion of those parts which are normally damaged by high temperature

The one component formula for high temperature type 5903 is a blend of silicone resins where AISI 316 L stainless steel micro flakes of various sizes have been embedded.

It resists up to 200° C.

PROTECTION

Against corrosion of those parts which are normally damaged by high temperature cycles.

USES

Boilers, mufflers, pipes, barbecues, motors, fireplaces, chimneys, oven doors, etc.

SURFACESSteel, aluminium, copper, cast iron and other metals.

PREPARATION

Treat with a hand or electric metallic brush, after completely removing dirt, grease, oil and every other pollutant.

Preferably sand blast to SA 2 or 2½ to obtain the best results, especially in case of severe applications and temperatures over 260° C

THICKNESSES

At least 2 consecutive coats of 75 µ dry/325 µ wet each coat. Apply 3 coats of 75 µ dry/325 µ wet each coat for severe applications regarding corrosion and/or temperature.

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 1,6 – 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.

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
Contrary to other types of silicone-based high temperature coatings which do not dry in open air, Steel it 5903 is touch dry in 1 hour and can be over coated after another hour. Complete drying is reached after 24 hours. After spraying all the coats the paint requires a minimum of 30 minutes in the oven at 200° C to completely cure and reach optimum hardness and resistance properties. An additional curing is performed during service.

COVERAGE
Theoretical coverage 3 sm/lt. at 75 µ dry.

LIMITATIONS
Minimum application temperature 5° C for both working place and surface to coat.  Relative humidity less than 86%.

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 contactFrequent contact
Custer oilGlycerineDistilled water
Sunseed oilGlucoseDrinking water
Lineseed oilFruit juiceAcrylic emulsion
Peanut oilHexaneEthylene glycol
Fish oilKeroseneVaseline
Sea waterGasoline
TurpentineVM&P naphtha
DetergentsBrine
Diesel fuelAqueous alcohol 40%
Alum. sulphate 20%

 

 

Technical Data


STEEL IT
5903
 CPS viscosity:
1100
 Colour:
 Metallic (*)
 Sheen:
 low gloss
 Total solid: by weight
 23%
 Total solid: by volume
 35%
 Shelf life:
 1 year
 V.O.C.: gr/litre
 454
 Weight per gallon: kilos
 4,9

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


 

 

 

PACKING

ProductCodeUnit LitresUnits per boxWeight per box Kilos
STEEL IT
5903 
ST.5903Q0,945 6 Cans8
ST.5903 G3,780 4 Cans22

(*) Used only for touch-ups and small works