WATER PROOFING
Dr. Fixit Blueseal
S P R A Y A P P L I E D I N S T A N T S E T T I N G P O LY U R E T H A N E
B A S E D WAT E R P R O O F I N G SYS T E M
Description
172 Dr. Fixit Blueseal
Dr. Fixit Blueseal is a two component, polyurethane based waterproofing system which is instant setting and
spray applied. The system may be applied to substrates where the surface temperature is of the order of 10C to
48C. Grades, adjusted in reactivity, are available for both cold and hot condition.
Areas of Application Roof Waterproofing.
Features & Benefits
Dr. Fixit Blueseal system is self flashing and provides seamless protection by sealing cracks, crevices and holes.
Dr. Fixit Blueseal offers.
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Stops Leaks Adheres well to concrete, masonry and variety of other substrate..
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Light Weight Does not attract rodent and harbour mold growth.
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Method of Application
S U R FAC E P R E PA R AT I O N
The surface of application must be thoroughly prepared by mechanical means, to remove all loose particles,
laitance, etc.
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Oil and grease, if any, must be de-greased with suitable solvents.
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Any surface undulations, cracks and crevices must be duly filled or repaired with cement sand mortar mixed
with latex polymers such as Dr. Fixit Pidicrete URP / Dr. Fixit Pidicrete MPB.
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E N V I R O N M E N TA L CO N S I D E R AT I O N A N D S U B S T R AT E T E M P E R AT U R E S
Applicators must recognize and anticipate climatic conditions prior to application. Ambient air and substrate
temperatures, moisture, and wind velocity are all critical determinants of product quality and selection of the
appropriate reactivity formulation.
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Variations in ambient air and substrate temperature will influence the chemical reaction of the two components,
directly affecting the expansion rate, amount of rise, yield, adhesion and the resultant physical properties.
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To obtain optimum results, the Dr. Fixit Blueseal system should only be spray-applied to substrates when
ambient air and surface temperatures fall within the range of 10C and 48C.
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All substrates to be sprayed must be dry at the time of application.
Moisture in the form of rain, fog, frost, dew, or high humidity (>85%R.H.), will react chemically with the mixed
components, adversely affecting the polyurethane barrier formation, dimensional stability and physical
properties of the finished product.
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Wind velocities in excess of 12 miles per hour may result in excessive loss of exotherm and interfere with the
mixing efficiency, affecting foam surface, cure, and physical properties.
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A P P L I C AT I O N EQ U I P M E N T
2:1 transfer pumps are recommended for material transfer from container to the proportioner. The plural
component proportioner must be capable of supplying each component within 2% of the desired 1:1 mixing
ratio by volume. Hose heaters should be set to deliver 50C to 55C materials to the spray gun. These settings
will ensure thorough mixing in the spray gun mix chamber in typical applications.
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Optimum hose pressure and temperature will vary with equipment type and condition, ambient and substrate
conditions, and the specific application. It is the responsibility of the applicator to properly interpret equipment
technical literature, particularly information that relates to the acceptable combinations of gun chamber size,
proportioner output, and material pressures.
172 blueseal -8/08/14
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WATER PROOFING
172 Dr. Fixit Blueseal
The relationship between proper chamber size and the capacity of the proportioners pre-heater is critical.
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Mechanical purge spray guns (specifically direct impingement or DI type) are recommended for highest foam
quality.
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A P P L I C AT I O N
Polyurethane waterproofing is sprayed onto the prepared roof surface in two components (a polyol and an
isocyanate) that when mixed expand their volume to form a seamless layer. Within minutes this foam can
be walked on and cures to 90 percent of its full strength in about four hours.
}}Because polyurethane layer adheres to most surfaces, horizontal or vertical, it creates a fully-adhered, self
flashing, monolithic roof surface, with none of the critical failure points of most roof systems (seams and
penetrating fasteners).
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Precautions & Limitations
If components are below suggested temperatures, the increased viscosity of the components may cause pump
cavitation resulting in unacceptable application. If components are above suggested temperatures, there may be
loss of blowing agent resulting in diminished yield.
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Extreme care must be taken when removing and reinstalling drum transfer pumps so as NOT to reverse the A
and B components.
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Store drums at 20C to 25C for a minimum of 48 hours before use.
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Materials in containers should be maintained at 20C to 25C while in use. Material temperature should be
confirmed with a thermometer or an infrared gun.
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Do not configure equipment to recirculate Dr. Fixit Blueseal components from proportioner back into drum.
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Do not recirculate or mix other suppliers A or B component into Dr. Fixit Blueseal system containers.
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Technical Information
The following properties are obtained on Dr. Fixit Blueseal, sprayed to a total thickness of approx.10mm in 2
applications, onto a concrete slab.
PROPERTIES
Value
Test Method
Core density(kg/m3)
55-60
ASTM D-1622
Closed cell content, apparent vol,%
96-98
ASTM D-2856
Water Vapour Transmission,perm-inch
ASTM C-518/91
All cut surfaces
With skin retained
Water absorption,per cm2(gm/cc)
ASTM C-272
Without protective coating
0.012
With protective coating
0.009
Dimentional Stability (linear Change)
ASTM D-2126
7 days @ -15C
< 1.0
7 days @ 100C
7 days @ 70C
2.5
Fire resistance
Conforming to Class - B2
DIN 4102
WATER PROOFING
Shelf Life & Storage
Store at room temperature in sealed drums. Moisture will react with this component to produce a surface skin
of polymerized material. Protect from moisture and moisture vapour. Close all drums after use.
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Maximum permissible storage time is 6 months. The ideal storage temperature is between +20C and +25C.
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172 Dr. Fixit Blueseal
MDI may undergo partial crystallization at temperature below 0C. The product can, however, be brought back
into the liquid state by placing the container in a heating cabinet and carefully warming the entire contents for a
short time to a maximum of 70C.
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The Polyol Component is a low viscosity blend of polyols, hydro fluorocarbon blowing agent, catalysts and
surfactant. Store at room temperature (below 25C.) in sealed drums. Close all drums after use to prevent loss
of blowing agent and absorption of moisture.
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Health & Safety Precautions
Appropriate literature has been assembled which provides information concerning the health and safety
precautions that must be observed when handling materials. Before working with this product, you must read
and become familiar with the available information on its risks, proper use and handling.
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MDI is classified as a dangerous substance and requires a hazard warning label. It must be handled with care.
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Safety goggles, impermeable protective gloves and overalls should always be worn when handling this product.
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Contaminated clothing should be removed immediately to prevent further skin contact.
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Other Products Categories available
Dr. Fixit brings you the widest range of Construction Chemicals
Construction Chemicals Division
Ramkrishna Mandir Road, Post Box No. 17411
Andheri (E) Mumbai 400059 INDIA
Tel +91-22-2835 7000 Fax +91-22-2835 7008
website www.doctor-fixit.com E-mail drfixit@pidilite.com
E-mail drfixitadvice@pilmail.com
Dr. Fixit Advice Centre (Toll Free No.) 1800-209-5504
DISCLAIMER The product information & application details given by the company
& its agents has been provided in good faith & meant to serve only as a general
guideline during usage. Users are advised to carry out tests & take trials to ensure on
the suitability of products meeting their requirement prior to full scale usage of our
products. Since the correct identification of the problems, quality of other materials
used and the on-site workmanship are factors beyond our control, there are no
expressed or implied guarantee / warranty as to the results obtained. The company
does not assume any liability or consequential damage for unsatisfactory results,
arising from the use of our products.
Pidilite Industries Limited
