Product Overview

Testing Data
For specific test criteria, refer to the UL Product iQ and Interek Directory of Building
Products or call RectorSeal
Metacaulk FRM Fire Rated Mortar was tested at positive pressure with a minimum
0.01 (2.5 Pa) inches water and in accordance with ASTM E814 (UL 1479). Tested in
accordance with CAN/ULC S115 testing standards.
Suggestions and recommendations covering the use of our products are based on our past experience and laboratory
findings. However, as we have no control as to the methods and conditions of application, we only assume responsibility for
the uniformity of our products within manufacturing tolerances.
Installation Data
Mixing Procedure: Mix with clean water in a suitable container. Slowly add the dry
mortar mix to water while stirring by hand, or by power mixer, to ensure a smooth
lump free mix.
Recommended Mixing Ratios:
Mortar Mix: Water (by volume)
Consistency:
Pourable For Floor Openings 2 1/2 : 1
Stiff for Wall Openings 3 : 1
DO NOT USE A MIX RATIO OF LESS THAN 2:1
NOTE: The wet mix will remain usable for approximately 45-60 minutes depending
on batch size, water content and temperature. Once material has been mixed to
the desired temperature. Once material has been mixed to the deired consistency,
DO NOT attempt to alter by adding additional water or mortar THIS WILL CAUSE
THE MATERIAL TO HARDEN VERY QUICKLY. Any spillage should be wiped up with a
damp cloth before setting occurs.
Thickness/Fire Rating
Refer to tested designs or manufacturer's recommendations. For additional technical
information call toll free 800-231-3345.
INSTALLATION INSTRUCTIONS
WALL OPENINGS
For small holes and gaps, trowel a stiff mix into the opening to the desired depth. For
larger holes, use an appropriate damming material to support the mix until it sets.
FLOOR OPENINGS
When sealing holes in floor slabs, an appropriate damming material must be installed
prior to pouring in the mortar mix. Panels of damming materials should be cut to fit
tightly around penetration within the opening so as to avoid leakage of the mortar
mix during pouring.
NOTE: Damming materials can be made from various materials, e.g. insulation, hard
foam, wood, backer rod, etc. These damming materials can be either combustible or
non-combustible. Combustible damming material is usually removed after the mortar
mix has set. Non-combustible damming materials can be left in place. However, the
specifier or the local authority having jurisdiction may require a specific type of or
the removal of a particular damming material. If damming material is to be removed,
a suitable bond breaker (e.g. plastic sheeting) should be used between the mortar
mix and the damming material.
Asbestos Fillers None
pH Values 6.5
Activation of Intumescence:
Approximate
expansion on setting
0.1%)
Color Light red
Density loose bulk 40.6 pcf
(650 kg/m3)
Density wet cast 84.3 pcf
(1350 kg/m3)
Density oven dried 54.6 pcf
(875 kg/m3)
Crushing strength, wet 700 psi
(5 N/mm2)
Adhesion to conrete Excellent
Adhesion to Steel/
Copper
Good
Adhesion to Cables Good
Freeze/Thaw Excellent
Workable Pot Life Approximately 45
minutes
set hard 3-4 hours
Fully cured 28 days
Volume Coverage:
Yield 2:1 mix ratio
1500 cubic inches
per 45 lb bag
3:1 mix ration
1350 cubic inches
per 45 lb bag
20 lbs 2-1/2:1
665 cu in
3:1
600 cu in
45 lbs 2-1/2:1
500 cu in
3:1
1350 cu in
Material Properties