HORIZONTAL JOINT SEALANT
Seals concrete horizontal joints against
water infiltration with a durable and flexible rubber-like seal.
SEALTIGHT GARDOX Horizontal Joint Sealant is a pourable, two-component,
cold-applied compound that forms a tough, durable, rubber-like seal in
horizontal concrete joints.
SEALTIGHT GARDOX Horizontal Joint Sealant is a pourable,
two-component, cold-applied compound for sealing joints in concrete. Chemically
reactive polymers, plasticized with coal tar, cure to a durable, rubber-like
joint seal that offers a firm, smooth, non-tracking surface retaining
flexibility from -20ºF (-29ºC) to over +200ºF (93ºC). Effectively seals the
joint against water infiltration and rejects incompressibles.
GARDOX is resistant to jet fuels, most common solvents and chemicals. GARDOX
will accommodate a joint movement of ±25% when correct joint design techniques
are followed in regard to the accommodations of anticipated joint movement and
the proper joint width of twice the depth [1/2'' (12.7mm) minimum] ratios.
SEALTIGHT GARDOX Horizontal Joint Sealant is recommended for
sealing horizontal joints on highways, airport runways, bridges, plaza decks and
driveways. Interior uses include sealing joints in industrial floors, garage
floors, airplane hanger floor joints, etc.
Features and Benefits
|Formulated with chemically reactive urethane polymers
modified with coal tar which cure to form a durable rubber-like joint seal
|Provides a firm, smooth, nontracking surface in
summer...retains flexibility in winter
|Requires no caulking gun or special metering
equipment...blends by hand or with a slow-speed drill
|Resistant to jet fuels, most common chemicals and
|Mix and pour right from the container
|Easy and economical to use|
Electric drill with flat-bladed paddle
Wooden hand paddle
JOINT SIZES: GARDOX Horizontal Joint
Sealant should be used in joints not less than 1/4" (6.35mm) wide. A 2:1
width-to-depth ratio should be maintained. However, in no case should joint
sealant depth be less than 1/4' or exceed 1/2". Proper joint design
practices and application techniques must be followed for successful
JOINT PREPARATION: Remove foreign substances, incompressibles and free water
from joint opening. For proper adhesion, joints must be clean and dry. Dust,
dirt and laitance should be removed prior to application. GARDOX adheres well to
unprimed concrete; however, the use of P/G Primer is recommended for optimum
To control sealant depth, insert SEALTIGHT KOOL-ROD Backer Rod in the joint
before sealing. For larger joints, where additional support is required, use a
non-asphaltic joint filler such as CERAMAR Flexible Foam Expansion Joint Filler.
For straight joint edges, mask off top surfaces with masking tape.
METHOD OF APPLICATION: Pour polymer component into larger base material
container. Blend in a 1:1 ratio. Mix entire unit. Blend thoroughly, either by
hand mixing with a wooden paddle or with a slow-speed drill and flatbladed
NOTE: GARDOX has a work life of approximately 3 hours; less at temperatures
above 70ºF (21ºC). Next, pour GARDOX into joint with suitable pouring
container Clean tools with Xylene or Toluene and remove masking tape before the
sealant cures. GARDOX will self-level and cure to a rubber-like compound in 72
hours at air and surface temperatures above 70ºF (21ºC). Sealant will be
tack-free in 12 hours.
7.47 gal./ft³ (1,000 L/m³). A 1/2" x 1/2" (12.7 x
12.7mm) joint will require 1.3 gallons/100 lineal feet (16 L/100m).
Limitations / Precautions
GARDOX components are pre-measured to exact quantities. Mix all
materials in container; do not mix partial units or dilute. Do not use GARDOX at
temperatures below 40ºF (4ºC) or in wet joints. If expected movement is
greater than +/- 25%, GARDOX should not be used in this application. Do not
apply GARDOX to galvanized surfaces. GARDOX may be used on steel and other
non-galvanized metals only when the surfaces are first cleaned to bright metal,
acid etched and P/G Primer is used.
GARDOX is not recommended for swimming pools, joints subjected to hydrostatic
pressure, joints in ice rinks or parking decks. GARDOX is not compatible with
asphaltic joint fillers or asphaltic concrete pavements.
Avoid contact with skin or prolonged breathing of vapors. Refer to Material
Safety Data Sheet for complete Health and Safety Information.
1 gallon Unit consists of a 1/2 gallon (1.89 liters) of base
and 1/2 gallon (1.89 liters) of catalyst in an imperial gallon container.
4 gallon Unit consists of 2 gallons (7.57 liters) of catalyst in a
two-compartment 5 gallon (18.93 liter) pail.
Federal Specification SS-S-200 D, Type H
Federal Specification SS-S-195, Type H
FAA Specification Item P-605
ASTM C 920, Type M, Grade P, Class 25, Use T
Corps of Engineers CRD-C 526, Type H
GARDOX should be stored in a cool
warehouse. Like many top-quality, two-component sealants, GARDOX has a limited
(maximum 6 months) shelf life and should be used as quickly as possible after
NOTE: Do not open pail until ready to use as this significantly reduces shelf
This material last updated December, 2001.
W. R. MEADOWS, INC. warrants that, at the time
and place we make shipment, our materials will be of good quality and will
conform with our published specifications in force on the date of acceptance of
the order. THE FOREGOING WARRANTY SHALL BE EXCLUSIVE AND IN LIEU OF ANY OTHER
WARRANTY, EXPRESS OR IMPLIED, INCLUDING THE IMPLIED WARRANTIES OF
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE AND ALL OTHER WARRANTIES
OTHERWISE ARISING BY OPERATION OF LAW, COURSE OF DEALING, CUSTOM OF TRADE OR
OTHERWISE. As the exclusive remedy for breach of this Warranty, we will replace
defective materials, provided, however, that the buyer examine the materials
when received and promptly notify us in writing of any defect before the
materials are used or incorporated into a structure. Three (3) months after W.
R. MEADOWS, INC. has shipped the materials, all our Warranty and other duties
with respect to the quality of the materials delivered shall conclusively be
presumed to have been satisfied, all liability therefore terminates, and no
action for breach of any such duties may thereafter be commenced. W. R. MEADOWS,
INC. shall in no event be liable for consequential damages. Unless otherwise
agreed to in writing, no warranty is made with respect to materials not
manufactured by W. R. MEADOWS, INC. We cannot warranty or in any way guarantee
any particular method of use or application of the performance of materials
under any particular condition. Neither this Warranty nor our liability may be
extended or amended by our salesmen, distributors or representatives, or by our
distributor's representatives, or by any sales information or drawings.