PRODUCTS TECHNICAL DATA SHEET|PRIMERS


Vinyl-Shield 7342

VINYL WASH PRIMER

PRODUCT FEATURES

  • Excellent surface pretreatment for galvanized steel and aluminum
  • Improves adhesion of primers and topcoats on galvanized steel and non-ferrous metal such as aluminum
  • Very fast drying times for efficient recoatability
  • Easy to apply with any conventional painting equipment

Suggested Uses

  • Aluminium (conditionned with AGA-2000 before)

Technical Data

Coating type Polyvinylic resins
Colour Yellow
Packaging 3.78 L (1 US Gallon)
Mixing Ratio 1 : 1 per volume
Flashpoint 12º C (53.6º F)
Gloss Flat
Induction time None
Thinner N/A
Pot life 6 hours
Shelf life 1 year
Density (ASTM D 1475) 0.86 kg / L +/- 0.05
Weight 7.15 +/- 0.11 lb / US gal.

Volatile organic compound (VOC) 6.25 lb / US gal. (750 g/L)
Temperature resistance N/A
Solids (ASTM D1644)
By weight 12 +/- 2% (depending on colour)
By volume 6 +/- 2% (depending on colour)
Theoretical

spreading rate

2.5 sq.m / lat 25 microns dry

100 sq.ft. / US gal at 1 mil

Recommended film thickness 7.5 +/- 2.5 microns dry
(0.3 +/- 0.1 dry mil)
Application methods Brush, roller, conventional air spray, airless and HVLP

Surface Preparation

The surface preparation recommended for VINYL-SHIELD™ 7342 is to include removal of all oil, grease, dirt, dust, mill scale, rust, paint, oxide, corrosion product, and other foreign matters. This can be accomplished with hydroblasting, grit sweeping and with a variety of mechanical descaling tools. For steel, the minimum standard is Steel Structures Painting Council Standard SSPC-SP6.The recommended surface preparation is SSPC-SP-10. For galvanized steel and aluminum, the minimum standard is SSPC-SP-1 (solvent cleaning).

Mixing and Thinning

VINYL-SHIELD™ 7342, is a two component product supplied in a 1 US gallon kit which contains the proper ratio of ingredients. The entire content of each container must be mixed together. Power mix the base portion first to obtain a smooth, homogeneous product.

After mixing the base portion (VINYL-SHIELD™ 7342 "Part A") for a 5 to 10 minutes, making sure pigment is fully incorporated slowly add component "B" (acid catalyst Vinyl-Shield™ GS 7343C) with continued agitation. After the component "B" add is complete, continue to mix slowly until both components are thoroughly mixed.

Thinning is not required. The pot life of the mixd material is 6 hours at 77ºF (25ºC). Higher temperatures will reduce the pot life of the product; lower temperatures will increase it.

Application Conditions

Industry standards are for the substrate temperatures to be above 10º C of the dew point. Condensation due to substrate temperatures below the dew point can cause fl ash rusting on prepared steel and interfere with proper adhesion to the substrate. Special application techniques may be required above or below normal application conditions.

Condition Material Surface Ambient Humidity
Normal

60 - 85º F

(16 - 29º C)

60 - 85º F

(16 - 29º C)

p>60 - 90º F

(16 - 32º C)

0 - 65%
Minimum 50º F (10º C) 50º F (10º C) 50º F (10º C) 0%
Maximum 90º F (32º C) 100º F (35.5º C) 100º F (35.5º C) 85%

DISCLAIMER: All information is given in good faith. Since conditions of use are beyond the manufacturer's controls, all information contained herein is without warranty, implied or otherwise. All technical data and specifications are subject to change. Please consult with your Glass Shield representative for more detailed coating recommendations. Revised 08-01-2007

Packaging, Handling & Storage

Shipping weight (approximate) 1 gallon 7.15 lb
(3.17 kg)
Flashpoint (setaflash) 53.6º F (12º C)
Storage (general) Store indoors

Typical Sequence (First class finish)

Disadvised Use

  • Non conditionned aluminium application

Application

VINYL-SHIELD™ 7342 must be spray applied. Care should be taken that proper and uniform, thin, film thicknesses are obtained. For HVLP applications, please refer and comply with equipment supplier's recommendations.

Airless & Air Spray

Manufacturer Graco
Pump 30 : 1
Fluid hose 3/8" x 100' max
Tip size 311, 413, 515, 517
PSI 3500 PSI min.

Manufacturer Devilbiss SATA
Spray gun HET K3 RP
Fluid tip 1.1 ff 1.1
Air cap #410 / 414
Fluid line 3/8" 3/8"
Pressure pot 15 - 25 psi 40 psi
Atomizing air 50 - 60 psi 36 psi

Curing Schedule

These times are based on a 2.0-3.0 mil (50-75 micron) dry film thickness. Higher film thickness, insufficient ventilation or cooler temperatures will require longer cure times and could result in solvent entrapment and premature failure of the film. Consult technical services for recommendations and test results. If the maximum recoat time has been exceeded, the surface must be sanded or prepared with a brush off blast SSPC-SP-7 prior to the application of additional coats. Vinyl-Shield™ 7342 applied below 40ºF (4ºC) may temporarily soften for several hours, after temperatures rise to 60ºF (16ºC). This is a normal condition and will not influence performance.

Dry to touch 15 minutes
To recoat 30 minutes (max. 8 hours)
Hard N/A
Full cure N/A