JD Technical Group
Inc. is dedicated to exceptional AC Tech products, service
and response to the construction industry for Moisture
Mitigation, both positive and negative side waterproofing,
crack injection, primers and cementatious underlayment's
for the flooring industry With the philosophy that the
industry high standard is accomplished through professional
organizations like ACI, ICRI, CSI, AIA, Starnet Flooring
Vapor Reduction, high performance waterproofing systems
for positive and negative side reduction of water using
crystalline type systems. With the understanding that
ASTM standards such as: ASTM E 96/96m-05, ASTM E 1308
and ASTM E 06 are the industry standards to follow for
peace of mind.
JD Technical Group Inc. services
the industrial (chemical, power, food and beverage,
pharmacutical, water and WWT). The recreational (sports
floors), institutional, educational (elementary schools,
universities, high schools), specialty health industry
(hospitals, clinics) as well as government projects.
JD Technical Group Inc.
has been dedicated to providing construction industry
professionals with top-notch quality products since 2008.
JD's products are designed with ease of installation in
mind. JD's expert Sales, Technical, and Support team bring
50 years of experience to architects, engineers, construction
managers, contractors, and professional flooring installers.
Waterproofing Library is now open 24/7 due to
popular demand. All listed reference publications
are 100% free downloads. Add a few to your company
reference library today! Contact us if you need
assistance or would like to donate publications
for listing in this well visited Waterproofing Reference
Over the past ten years, polymer-based
waterproofing products have been developed. Polymer-based
products last for the lifetime of the building, and are
not affected by soil pH. Polymer-based waterproofing materials
have the advantage of a low enough viscosity that they
can be sprayed directly onto a wall, are very fast curing,
and are semi-flexible, allowing for some movement of the
substrate. Read a brief review of waterproofing
When moisture vapor levels challenge
the warranty limitations of high quality flooring products,
we have the complete system. The resins cure under extreme
moisture vapor conditions and remain unaffected by high
levels of alkalinity. A true one-coat system, easy to
apply, V.O.C. compliant, allows flooring to be placed
after a 12-hour cure.
JD Technical Group is recognized
as the industry leader in moisture
and oil remediation in concrete flooring systems.
JD Technical Group products and performance track
record to speaks for itself. Damp proofing, waterproofing,
renovation and crack injection products for large
scale construction or one-off domestic projects. Our
products have a proven track record and are fully
For waterproofing, vapor-proofing,
oil contamination remediation, resurfacing concrete
substrates, or crack injection, JD Technical Group
has the solution. With combined experience of over
50 years, our technical and sales staff continues
to offer the best recommendations and products for
remediation for the toughest jobs.
We service the industrial (chemical,
power, food and beverage, pharmacutical, water and
WWT) industries. The recreational (sports floors),
institutional, educational (elementary schools, universities,
high schools), specialty health industry (hospitals,
clinics) as well as government projects are all serviced
by the JD Technical Group Inc. sales force.
for moisture vapor emission (MVE) is available through
JD Technical. We only follow the approved standard
format by the ASTM. Get your ACT® together!
Surf on over to the Product
Index if you know what you're looking for.
A good idea would be to avoid
doing business with any product manufacturer or applicator
that does not discuss the subject at all (click
JD Technical Group Inc. is
dedicated to exceptional products, service and response
to the construction industry for Moisture
Mitigation, both positive and negative side
waterproofing, crack injection, primers and cementatious
underlayment's for the flooring industry With the
philosophy that the industry high standard is accomplished
through professional organizations like ACI, ICRI,
CSI, AIA, Starnet Flooring and FCICA.
With dedication to Moisture
Vapor Reduction, high performance waterproofing
systems for positive and negative side reduction of
water using crystalline type systems. With the understanding
that ASTM standards such as: ASTM E- 96/96m-05, ASTM
E 1308 and ASTM -E 06 are the industry standards to
follow for peace of mind. Water
vapor's contribution to the pressure increases as
its concentration increases. Its partial pressure
contribution to air pressure increases, lowering the
partial pressure contribution of the other atmospheric
gases (Dalton's Law). The total air pressure must
The presence of water vapor
in the air naturally dilutes or displaces the other
air components as its concentration increases. This
can have an effect on respiration, in very warm air
(95°F). The proportion of water vapor is large enough
to give rise to the stuffiness that can be experienced
in humid jungle conditions or in poorly ventilated
buildings and/or buildings that are not properly sealed.
for moisture vapor emission (MVE) is available
through JD Technical. We only follow the approved
standard format by the ASTM.
Specifying a qualified independent
third-party testing agency (someone whose only interest
is collecting and reporting accurate and complete
testing information) to perform the testing is the
most prudent approach, as opposed to requiring the
contractor or the general contractor, who typically
have a vested interest in the results, to carry out
the testing. It pays for to take charge of the process
of creating detailed moisture and pH testing specifications
that direct the entire construction team as to what
is expected of them so potential problems can be identified
and solved in advance.
Be wary that sometimes the
vapor transmission only appears when it is or has
rained, so this is not a gauranteed test. A key to
getting good results with epoxy coatings is surface
preparation. Overkill is much better. You should clean
and degrease followed by at least one thorough clean
water rinse. Allow the surface to dry completely (at
least 12 hours) before coating. Work quickly, since
the coating has a limited life span once the two components
are mixed together.
Vapor Barriers: Nuisance
The subject of vapor barriers
or retarders beneath concrete slabs on grade has long
been controversial. Some justifiably argue that slabs
placed in direct contact with a vapor barrier or retarder
are more susceptible to curling and other slab problems
than those cast on a granular base. They consider
a vapor barrier or retarder a downright nuisance.
A brief description
of alternative methods for dealing with slab moisture
problems by Peter A. Craig. Moisture-related problems
with floor coverings and coatings applied over concrete
slabs have become a serious and costly issue for designers,
constructors, manufacturers, installers, and owners.
Problems are being experienced on both new and renovation
The long-awaited day has come,
the project is complete, and everyone involved is
eager to show off the new look of the facility. But
wait a minute. Something is terribly wrong. Adhesive
is bleeding through joints between the floor tiles,
and there are bubbles in the sheet goods and epoxy
flooring. Worse yet, there is a noticeable odor in
the air. Sabotage? No, unfortunately what is occurring
on this project has become all too common across the
country. Such problems are being caused by moisture
and moisture-induced high pH levels beneath flooring
Mitigation & pH Stabilization System Application
Site Review (JD Technical can schedule an on-site
visit if necessary)
Project Recommendations ~ Get your ACT® together!
JD Technical Group Inc. will
recommend products based on your project's unique
requirements for warranties to remain valid.
F 1869-10, “Standard Test Method for Measuring
Moisture Vapor Emission Rate of Concrete Subfloor
Using Anhydrous Calcium Chloride,” ASTM International,
West Conshohocken, PA, 2004, 3 pp.
F 2170-09, “Standard Test Method for Determining
Relative Humidity in Concrete Floor Slabs Using In-Situ
Probes,” ASTM International, West Conshohocken, PA,
2002, 5 pp. Manufacturers requiring RH testing (click
F 710-08, “Standard Practice for Preparing Concrete
Floors to Receive Resilient Flooring,” ASTM International,
West Conshohocken, PA, 2005, 6 pp.
There are plenty of instances
when a vapor barrier is going to make a tremendous
difference in the moisture content, the damage from
mildew and mold, or humidity in a building. If you
are not sure of which waterproofing products should
be used, call, email
or fill out our contact