MORTARLOC Expansion Joints are designed for thick-bed
(mortar style) installations as opposed to thin bed installations
where Batex is primarily used.
MORTARLOC is manufactured utilising two side plates generally
1.2mm in thickness sandwiching a Neoprene infi ll in between.
The thickness of the side plates is normally determined by the
metal being used and the subsequent installation surrounds and
scenario. Thicker or thinner side plates can be used on request.
Mortarloc is manufactured in four standard metals;
Aluminium Brass Stainless Steel and Zinc.
The outstanding feature of the MORTARLOC Expansion
Joints is that unlike other available materials there are no
separate anchors required to hold the joint in place. The
anchors are part of the existing side- plate and are simply
bent out to 45 degrees during installation holding them in
the mortar bed.
MORTARLOC and BATEX Expansion Joints are not mechanical
movement joints and should only be installed where limited
movement within the fl oor covering is expected.
One of the major reasons for movement is temperature
fl uctuation caused by either seasonal change failure or
disconnection of airconditioning systems within closed buildings
or sudden downpours in tropical locations. All of which may
result in thermal expansion or contraction between .003mm
and .008mm per metre per degree centigrade temperature
fl uctuation. For basic calculations an average factor of .006mm
per metre per degrees centigrade is acceptable.
Mortarloc can be custom made to specifi cation i.e. radial
single-sided or multiple neoprene adhesion.
Temperature during installation 25?C
Expected Temperature rise 25ºC (to 50ºC)
Minimum Available Expansion on
Mortarloc with 6mm neoprene infi ll = 10%
0.006mm/m ºC x 25ºC = 0.15mm/m Expansion per line metre
Available expansion 0.6mm =4m (Distance between
Expansion per metre 0.15mm/m expansion joints
Mortarloc Thick-Bed Expansion Joints – Available in 1.8m lengths
Material Specifi cations:
Aluminium Alloy 6063
Brass Alloy 380/F
Stainless Steel Grade 304 / 316
All of these materials have high tensile strength and good resistance to corrosion in an
Neoprene – available in 6mm or 10mm widths
Black Grey Beige
other colours available on request
Hardness ASTM D2240 – Shore A 55
Tensile Strength ASTM D412 10 MPA
Elongation at Break 600%
Tear Resistance ASTM D624 28 Kn/M
Temperature Range -30?C to + 110°C
Acid Resistance – Concentrated Good
Acid Resistance – Diluted Excellent
Solvent Resistance – Hydrocarbons Good
Solvent Resistance – Oxygenated Fair
Oil & Gasoline Excellent
Animal & Vegetable Oils Good
Citric Acids Excellent
Neoprene is universally recognised as having excellent resistance to deterioration from ozone
and weathering as well as high physical strength.
Please note that Neoprene can slightly discolour under extreme UV exposure. For more
information contact B.A.T. Trims Pty Ltd.
Softening Point 165? C
Normal Operating Temperature Range -60?C to +180?C
Tensile Sheer Strength 15-20 N/mm²
Humidity Resistance High
The adhesive used is specially formulated to bond Neoprene to metal