Product Description
Hi-Temp 500V HA is a series of high temperature coatings
designed specifically for direct application to hot
operating equipment. The temperature of the metal
during application can be as hot as 300°F (156°C).
Hi-Temp 500V HA is a silicone acrylic system formulated
with a high percentage of silicone resin, a thermally
stable acrylic resin and inorganic pigments. This combination allows the 500V
HA Series to have superior color stability to 500°F
(260°C) as compared to most generic silicone acrylic
topcoats, which tend to discolor at elevated temperatures.
It is available in both standard and custom colors.
500V HA Series does not require a heat cure. It is
able to withstand severe thermal cycling up to 600°F
(315°C). Hi-Temp 500V HA Series is a user friendly
coating having excellent weathering and corrosion
resistance when applied over properly primed surfaces.
- Black and aluminum pigmented coatings have color stability to 850°F (454.4°C)
- Radiant energy can sometimes cause a temporary change in the appearance of heat resistant coatings.
- A delta change of 5+ units may occur when light colored topcoats are exposed to continuous maximum temperatures.
Characteristics
- Direct application to hot steel having a metal
temperature from 120°F-300°F (49°C-156°C)
- Color stability to 500°F (260°C)
- Thermal shock resistant to 600°F (315°C)
- VOC of 3.5 lbs./gal.
- User friendly
- Does not require a heat cure
Uses
- Power Plants
- Refineries
- Chemical Facilities
- Offshore/Marine
- Cement Plants
- Pulp & Paper
Specification Data
- Type:
- Silicone Acrylic
- Dry Temperature Resistance:
- Continuous:
- 600°F (315°C)
- Peak:
- 600°F (315°C)
- Color Stability*:
- 500°F (260°C)
- Colors:
- Standard & Custom Colors
- Finish:
- Semi-Gloss
- Components:
- One
- Dry Time @ 50% R.H., 70°F
- N/A
- Cure
- N/A
- Metal Temperature During Application
- 120°F-300°F (49°C-156°C)
- Thinner
- Hi-Temp #5
- Volume Solids
- 38%
- (Aluminum)
- (27%)
- Theoretical Coverage
- @1 mil.D.F.T.
- 708 sq.ft./gal.
- @ 25 microns
- 17.7 sq.m./l.
- VOC Content
- 3.5 lb./gal. (420 g./l.)
- Weight per gallon
- 11.0 lb. (5.0 kg.)
- Storage Temperature
- 40°-100°F (4°-38°C)
- Shelf Life
- 1 year
*Notes on Color Stability:
--Black and aluminum pigmented coatings have color stability to 850°F (454.4°C)
--Radiant energy can sometimes cause a temporary change in the appearance of heat resistant coatings.
--A delta change of 5+ units may occur when light colored topcoats are exposed to continuous maximum temperatures.
Surface Preparation
1) New Surfaces: Steel
Coated surfaces must be dry and free of weld splatter,
oil, dirt, grease, and all other contaminates. Round off
all rough welds and sharp edges. Abrasive blast to a SSPC-SP
6 "Commercial Blast". Blast profile should be 1.0-1.5
mils., (25-38 microns), in depth.
2) Previously Painted Surfaces: Poor Condition
Old coating shows evidence of cracking, fracturing,
delamination, and/or corrosion. Surface preparation guidelines
for new steel should be followed.
3) Rusty Surfaces
Surfaces with much corrosion present. Guideline
for new steel should try to be followed. If abrasive blast is
not possible, prepare the surface by an SSPC-SP 11 "Power
Tool." If this is unattainable, prepare the surface by an
SSPC-SP 2 "Hand Tool Cleaning." Apply one prime coat of Hi-Temp 1027
DTR. Application over tightly adhering rust is acceptable.
Topcoat with one coat of Hi-Temp 500V HA.
*Performance of system relative to surface preparation
accomplished.
4) Previously Painted Surfaces: Good Condition
Old coating is intact and there is no evidence of
cracking, fracturing, and/or delamination. Pressure wash
surface to remove all oil, grease, and contaminates and
apply one coat of 500V HA Series at 2.0-2.5 mils. dft. Prior
to a full topcoat application, apply 500V HA Series to a
small area and test for adhesion.
5) Previously Painted Surfaces: Good Condition,
some spotted corrosion
Old coating is intact, there is no evidence of
cracking, fracturing, and/or delamination. However,
there are small areas of corrosion which amount to
less than 10% of the area to be coated. Spot prepare
the areas of corrosion by an SSPC-SP 6 "Commercial
Blast". Blast profile should be 1.0-1.5 mils. in depth.
If abrasive blasting is not permitted, prepare the area
by a power tool cleaning accordance to an SSPC-SP
11. Apply one prime coat of Hi-Temp 1027 to
these areas. Once these areas are primed and dry,
power wash the entire structure, removing all oil,
grease, and other contaminates. Apply one coat of 500V
HA Series at 2.0-2.5 mils. dft. over the entire unit.
Prior to the full topcoat application, apply the 500V HA
Series to a small area and test for adhesion.
Application Instructions
Surface temperature must be a minimum of 5°F (3°C),
above the dew point. Do not apply to steel temperatures
below 50°F (10°C).
Systems: Un-insulated Steel*
Primers
- Hi-Temp 1027
- 5.0-6.0 mils. (125-150 microns)
Topcoat
- Hi-Temp 500V HA Series Topcoat
- 2.0-2.5 mils. (50-63 microns)
* Do not exceed recommended dry film thickness
Application Instructions to Hot Steel
1. IMPORTANT! It is essential to apply thin coats of the
Hi-Temp 500V HA during an application to hot steel.
This aids in allowing the solvent to escape the coating
without leaving pinholes behind. This application is
similar to mist coating.
2. Flush equipment with Hi-Temp #5 Thinner before
using equipment.
3. Hi-Temp 500V HA is normally not thinned. If the situation warrants thinning, use only Hi-Temp #5
Thinner.
4. Hi-Temp #5 Thinner is specifically formulated for
Hi-Temp 500V HA. It is a slow evaporating solvent
allowing for good film integrity as the coating is
being applied to hot operating equipment.
5. WARNING! Do not thin 500V HA with any other
solvent. A fire hazard could occur if using a different
solvent system. Dry spray and poor film characteristics may occur as well.
6. Do not apply a heavy coat to a hot surface or
blistering will occur. If this happens, immediately take
a brush, (use wood-handled brushes with China bristles
only. Do not use brush with synthetic bristles), and
brush out the blister before it sets.
7. Application to hot surfaces tends to promote dry spray.
8. To avoid dry spray, apply coatings without reaching.
Equipment
Conventional or airless spray is recommended. For conventional
spray use a DeVilbiss MBC-510, (or equal), gun with
an AV115-FZ (.0425") fluid tip and a 704 air cap. For airless
spray use a Graco 205-591, 208-663, (or equal), gun with a
fluid tip of 163-614, 163-616 and Graco Bulldog Pump at
30:1. Adjust pressure as needed. Hold gun 10"-12" from the
surface at right angles. Lap each pass 50%. When brushing
and rolling, use only quality brushes and rollers.
Mixing
Use mechanical agitation for mixing. Mix materials until uniform
in consistency.
Thinning
Thinning is not normally needed. If a condition warrants thinning,
thin only with Hi-Temp #5 Thinner. Thin according to
local air regulations.
Clean-up
Use Hi-Temp #5 Thinner.
Precautions
This product is for use only by professional applicators in
accordance with information in this bulletin and the Material
Safety Data Sheet (MSDS). Refer to this product's MSDS
before using this material. All use and application of this product
should be performed in compliance with all relative Federal,
State and local Health,
Safety & Environmental regulations.
Warranty
HTC warrants that its products are free from defects in material
and workmanship. HTC's sole obligation and buyer's
exclusive remedy shall be limited to replacement of products
not conforming to this warranty. Any claim for replacement
product must be made within one year from the delivery date.
HTC makes no other warranties, expressed or implied, such as
warranties of merchantability or fitness for a particular purpose.
HTC products are intended for Buyers with the knowledge
and skills to evaluate the suitability of HTC's products
for Buyer's intended use. In no event shall HTC be liable for consequential or incidental
damages.
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