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PRATT & LAMBERT PAINTS
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PRODUCT INFORMATION



Poxy-gard
High Build Epoxy Mastic Primer
S3508

 

Poxy-gard HB Epoxy Mastic Primer is an outstanding primer for maintenance painting in highly corrosive areas. New technology used in this primer allows it to penetrate adherent rust on pitted steel for optimum protection of the surface. This penetrating, or "wetting" action, allows this primer to be used over tight rust on the steel surface, encapsulating the rust into the coating. This technology is superior to the "soap type" wetting agents used in the past.

Poxy-gard HB Epoxy Mastic Primer has a high volume solids content which provides excellent protection for sharp edges, corners, angles and welds.

This product meets most local or governmental VOC restrictions and does not contain lead or chromates. Poxy-gard High Build Epoxy Mastic Primer is accepted by USDA for incidental food contact surfaces.

PERMEABILITY RATING: (ASTM D 1653) .21 mg/cm2 (perms)

ABRASION RESISTANCE: (ASTM D 4060): CS-17, 1000 cycles, 1000 gram load, 6.0-7.0 mils DFT; no more than 84 mg loss after 1000 cycles.

TEMPERATURE LIMIT: 250°F (121°C) dry heat.

Suggested Uses: When used as a prime coat with properly selected topcoats this product can be used in Chemical Plants Warehouses, Pulp & Paper Mills, Rail Cars, Power & Cogeneration Plants,Waste & Watere Tmeat Pntntla Os,shffe ormp&aMa; Sinuctrretu Ps,roetumleef Rerins,ieFo Podntla

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Approximate shipping weight is 133 lbs. for a 10 gallon unit and 27 lbs. for a 2 gallon unit.


TECHNICAL DATA


TYPE: Polyamide Epoxy

COMPONENTS: two

COLOR: Aluminum Bro„¬‹Fô‹V>

GLOSS: semi-gloss

FLASH POINT: 60°F (15°C) closed cup

SOLIDS BY VOLUME: 75.0%

VOC: maximum 2.8 Ibs/gal (340 g/1) after thinning

RECOMMENDED FILM THICKNESS: 5-10 dry mils

SPREADING RATE: Approximately 240 square feet per gallon for 5 mils dry film and 120 square feet per gallon for 10 dry mils (theoretical).

SURFACE PREPARATION: STEEL--Remove any oil or grease from surface using clean rags saturated with Thinner S6684 (xylene). For non-severe or non-immersion service, prepare in accordance with SSPC SP-3, Power Tool Cleaning, or SSPC SP-2, Hand Tool Cleaning. An alternate would be to prepare in accordance with SSPC-SP 6, Com- ercial Blast Cleaning. For severe chemical exposure or immersion service, prepare according to SSPC SP-10, Near White Metal Blast Cleaning.

MIXING: Using mechanical agitation, mix Base Component (S3508) and Activator Component (S3598) 1 to 1 by volume. Allow a 30 minute induction period prior to use.

POT LIFE: 4 hrs. @ 77°F (25°C)

SHELF LIFE: 1 year, inside storage at 40-100°F (4-38°C)

APPLICATION: Brush, roller or spray. If roller applied, use a 3/4"-l" nap roller (Wooster Professional R-241 or equal) and after mixing base and activator components, add 20% by volume of Epoxy Roller Additive (S3522) to the activated material while agitating. Should be applied with a minimum air temperature of 40°F (4°C). Do not apply when surface temperature is less than 5°F (3°C) above the dew point.

Suggested spray equipment: CONVENTIONAL--Binks #18 or #62 gun with a #67 fluid tip and #67PB air cap. Devilbiss MBC-510 gun with 'E' fluid tip and #704 air cap. AlRLESS--Use a 30 to 1 pump and a .017 to .023 tip adjust pressure as needed.

DRYING TIME @ 50% Relative Humidity
...... .........................100°F...........75°F.............50°F..............40°F
Set to touch .............12 mins.........15 mins.........20 mins..........30 mins.
Dry to handle ...........3 1/2 hrs.......3 1/2 hrs.......10 hrs.............24 hrs.
Dry to topcoat .........3 1/2 hrs.......3 1/2 hrs.......10 hrs.............24 hrs.

Can be top coated wet-on-wet with a Poxy gard HB topcoat over Poxy-gard HB Epoxy Mastic Primer.

TOPCOATS: Poxy-gard 35 HB Epoxy, Endu thane 28 HB Urethane, Enviro-tar~ (S3810), Armor-tar (S3910) Palgard Epoxy. Consult your Pratt & Lambert representative for other recommendations.

THINNING: No reduction for brush or roller. Not normally required for airless spray but may be thinned up to 10% per gallon of paint using Thinner S6682. For conventional spray, thinning may be required, if so, thin up to 10% per gallon of paint using Thinner S6682.

CLEAN UP: Thinner S6682 or MEK


PERFORMANCE DATA


Performance: Extensive testing of Poxy-gard shows this coating is among the best when compared to other epoxy mastics on the market. Since it can also be used as a topcoat, a complete epoxy mastic system is possible, and this will provide the best possible performance over pitted steel, sharp edges and angles. The high film build, up to 10 mils per coat, allows maximum protection with a minimum number of coats.

Sharp Edges: The ability of Poxy-gard to protect sharp edges is one of the most important features. This is the area where many coatings fail first and where the most protection is needed.

Wet-on-Wet Re-coat: Poxy-gard can be recoated "wet-on-wet" with only 1 hour between coats at 77°F (25°C). With this procedure up to 15 mils can be applied in 2 coats 1 hour apart. Do not exceed 15 mils when using this method and it is only recommended when 2 coats of Poxy-gard will be applied.

One Coat: For economy, a single coat of Poxy-gard Epoxy Mastic can be used because of the high film build and the epoxy mastic properties. One coat of this product will easily out perform two coats of other coatings such as alkyds.

Adhesion to Old Coatings: Poxy-gard normally has excellent adhesion to old coatings and can be used over old, fully cured alkyds. The old coating should be in good condition and tightly adhering. A test patch is advisable. This same procedure should be followed before re-coating fully cure films of Poxy-gard Epoxy Mastic Primer.

 

FOR PROFESSIONAL USE ONLY

Pratt & Lambert, Inc.

"Technical services, advice, and recommendations are rendered free. They are based on technical data which we believe to be reliable and are intended for use by persons having skill and know how, at their own discretion and risk We assume no responsibility for results obtained or damages incurred from their use by the Buyer in whole or in part "

 

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