Gipaanda Greenhouses
Delta
RUST GRIP ® primer and
SUPERTHERM
®
PROBLEM: Former insulation (perlite) became moisture laden which
significantly reduced the R-Value. The result was unnecessary heat loss,
corrosion to the pipes and mold in the insulation, all due
to moisture.
SOLUTION : Clean and primer coat pipes with
RUST
GRIP ® @ 3 - 6 mils WFT = 1.5 - 3 mils DFT to permanently
rust proof pipes and prevent rust bleed. Top coat with
SUPERTHERM
® NON DETERIORATING ( waterproof ) liquid ceramic R19 insulation
@ 14 mils WFT = 7 mils DFT
Note : 1 mil = 1/000"
BELOW: RUST GRIP ® primer coated
Feeder (left) pipe and return pipe (right)
BELOW:
Top coat SUPER THERM ®
NON DETERIORATING liquid ceramic insulation
TEMPERATURE READINGS:
05/04/01 (day of application)
Bare portion of feeder pipe
= 80C
SUPER THERM ®
coated feeder pipe = 76C
Temperature Difference
= -4C (5% REDUCTION IN HEAT LOSS)
Bare portion of return pipe =
49C
SUPER THERM ®
coated return pipe = 46C
Temperature Difference =
-3C (6% REDUCTION IN HEAT LOSS)
NOTE :
During the initial reading the coating of SUPER
THERM ® which cures by evaporation still
had moisture in the coating which acted as a conductor as opposed to a resistor
( R ). SUPER THERM ® contains 8% water when first applied. The
Canadian Roofing Association performed a study and determined that just 1% - 1.5%
moisture content reduces the R value in bulk insulations by over 35%. As the coating
of Super Therm cured down and the moisture content decreased the performance improved.
TEMPERATURE READINGS:
05/15/01 ( 11 days after being applied even though the Tech Information states
that the coating cures out completely in 14 days @ 70F ambient with a relative
humidity of < 70% )
Bare portion
of feeder pipe
= 86.2C
SUPER THERM ® coated feeder pipe = 69.8C
Temperature Difference
= 16.4C (19% REDUCTION IN HEAT LOSS)
Bare
portion of return pipe
= 41.3C
SUPER THERM ® coated return pipe =
33.5C
Temperature Difference =
7.8C (19% REDUCTION IN HEAT LOSS)
NOTE : A greater reduction in surface temperature can be achieved
by adding additional mils.

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