HC-68 Grout Structural Grout for Helicoid Epoxy Sleeve System (Rev.03-06/13)
Merit Technologies Sdn Bhd. (624982-P) No. 8, Jalan PJU 3/45, Sunway Damansara, 47810 Petaling Jaya, Malaysia Tel: + 603 7805 3811 Fax: + 603 7805 4811 Email: info @ merit.net.my
Description The HC-68 Grout is a three-component, low-
viscosity, epoxy adhesive specifically designed for
the Helicoid Epoxy Sleeve application. The
physical properties allow its use in applications
requiring high load-bearing strength and excellent
adhesion under adverse application conditions, as
well as underwater. The product has a long working
life and a low exotherm reaction (minimal heat
generation during curing) that makes it suitable for
applications where a relatively large mass of
adhesive is employed. HC-68 Grout is specifically
designed for applications requiring material
thickness in excess of 25mm.
Features
Convenient, pre-packed mixing by weight.
Simple full-pack mixing, to ensure that
performance characteristics are achieved.
Low exotherm for minimal heat built up in
cross sections of more than 25mm.
Non-shrink capabilities, ensuring full
surface contact.
Long working life for filling of large volumes.
Bonds excellently to various substrates,
dry, damp and underwater (potable and
seawater)
Excellent durability – high compressive,
flexural and tensile strengths ensure a long
working life.
Environmentally safe, does not contain
VOC solvents.
High early strength gain promotes minimum
downtime and early commissioning.
Typical Properties Compressive Strength 90 N/mm2 at 1 day
(ASTM C 109) 100 N/mm2 at 7 days
Compressive Modulus 2100 N/mm2
Flexural Strength 26 N/mm2 at 7 days
(ASTM D 790)
Tensile Strength 14 N/mm2 at 7 days
(ASTM D 638)
Modulus of Elasticity 8951 MPa at 7 days
(ASTM D580)
Coefficient of Thermal
Expansion (ASTM C531) 28.1 x 103
Bond Strength to Steel (underwater)
(SA 2.5)(ASTM D 4541) >10.5 MPa
(WJ3) (NACE/SSPC) average 8.4 MPa
Water Absorption 0.18 %
Pot life 2 hours @ 30°C
Packaging Standard package sizes of Part A + Part B + Filler
are 20.6 (10.3) ,8.9 (4.45) and 25kg.
Shelf Life Minimum 12 month in unopened, original containers
when stored between below 25°C in a dry place.
HC-68 Grout Structural Grout for Helicoid Epoxy Sleeve System (Rev.03-06/13)
Merit Technologies Sdn Bhd. (624982-P) No. 8, Jalan PJU 3/45, Sunway Damansara, 47810 Petaling Jaya, Malaysia Tel: + 603 7805 3811 Fax: + 603 7805 4811 Email: info @ merit.net.my
Chemical Resistance HC-68 Grout has excellent resistance to a wide
range of commonly encountered chemicals,
including acids, bases and hydrocarbon-based
fluids. The actual performance is a function of the
specific chemical, concentration, temperature and
exposure time. For information of specific chemicals
please contact the Merit Technologies Sdn Bhd
Technical Representative.
Instructions for Use Surface Preparation The surface to which the HC-68 is applied to must
be sound and free from all bond inhibiting
substances, free from oil, grease and/or any loosely
adherent material. Steel surfaces shall be cleaned
the “white metal” equivalent to SA 2.5 (Swedish
Standard).
Mixing HC-68 is a three-component designed system.
The entire contents of the Hardener shall be added
to the base and mixed for a period of 2 – 3 minutes
until a uniform color is achieved. It is recommended
prior to adding the base and hardener together to
thoroughly mix the contents in the container. Once
mixed, the filler shall be added progressively whilst
stirring, until a homogeneous mix is achieved. The
mix shall be used within the specified pot life. Part
mixing of the components is not recommended, as
is the adding of solvents to the mix.
Read all material safety data (MSDS) information
before handling the product. Wear safety glasses
and clean neoprene rubber gloves when handling.
Application Apply the materials in accordance with established
industry procedures and guidelines. Sufficient grout
must be available prior to starting and the time
taken to apply a batch must be regulated with the
time taken to prepare the next batch.
Hot Weather Working Whilst the performance of HC-68 at elevated
temperatures is assured, application under such
conditions can sometimes be difficult. It is therefore
suggested that, for temperatures above 35°C, the
following guideline are used:
Store unmixed materials in a cool
(preferably temperature controlled)
environment, avoiding direct exposure to
sunlight.
Keep mixing the material and ensure the
equipment remains cool, arranging shade
protection if required.
Ensure that there are sufficient operatives
available to complete the application within
the material’s pot life.
Cleaning Excess mixed-product is best removed from both
the work area and from tools before it hardens. Use
rags and solvents such as acetone or heavy duty
detergents to facilitate the cleaning. Cured product
is to be removed from tools by soaking them in an
epoxy stripper.
HC-68 Grout Structural Grout for Helicoid Epoxy Sleeve System (Rev.03-06/13)
Merit Technologies Sdn Bhd. (624982-P) No. 8, Jalan PJU 3/45, Sunway Damansara, 47810 Petaling Jaya, Malaysia Tel: + 603 7805 3811 Fax: + 603 7805 4811 Email: info @ merit.net.my
Handling and Toxicity
This bulletin does not accompany the product when
sold. For hazard warnings, safe handling and first
aid instructions, CAREFULLY OBSERVE THE
MATERIAL SAFETY AND DATA SHEETS AND
THE CONTAINER WARNING LABELS.
Warning! HC-68 contains resins which may cause
sensation by skin contact. It may cause allergic skin
reaction. Avoid contact with the skin and eyes.
Harmful if swallowed and avoid inhalation of the
vapours. Wear suitable protective clothing, gloves
and eye/face protection. Barrier creams provide
additional skin protection.
Should accidental skin contact occur, remove
immediately with a resin removing cream, followed
by soap and water. Do not use solvents.
In case of contact with the eyes, rinse immediately
with plenty of clean water and seek medical advice.
If swallowed, seek medical attention immediately-
do not induce vomiting.
Use only with adequate ventilation.