Mold_Mildew Flyer_May 2021

MOLD AND MILDEW
RESISTANT
SOLUTIONS
Hilti Firestop
WHD • 01/21
Hilti, Inc.
1-800-879-8000 | en español 1-800-879-5000
www.hilti.com
Hilti (Canada) Corporation
1-800-363-4458
www.hilti.ca
HILTI FIRESTOP AND CONSTRUCTION
CHEMICAL PRODUCTS WITH ASTM-G21
ZERO GROWTH RATING.
CFS-S SIL GG
CFS-S SIL SL
CP 506
CP 572
CP 606
CP 617
CP 618
CP 620
CP 637
CP 643N
CP 644
CP 648-E
CP 648-S
CP 675T
CP 680-P
CP 680-M
CF 812
CFS-BL
CFS-CC
CFS-DID
CFS-PL
CFS-SL GP
CFS-SL SK
CFS-SK RK
CFS-SP WB
CFS-T Cable Transit
FS-ONE MAX
CFS-T TS
CS-TTS SA
CFS-D 1”
CS-SL SA
CP 605
CFS-SP SIL
CFS-SL GA L
CFS-P PA
Testing for Mold Resistance
The test method used to determine
the effect of fungi on materials is
ASTM G-21 “Determining Resistance of
Synthetic Polymeric Materials to Fungi”.
Test is conducted by placing a sample
of material on a surface of agar and
sprayed with fungi spore. The sample is
then covered and incubated at
82 to 86°F (28 to 30°C) and not less then
a 85% relative humidity for minimum
28 days. The only potential nutrient is
the sample itself. If the sample is not
attacked by fungi then the material is
considered mold and mildew resistant.
The material is then given a rating of
0, 1, 2, 3 or 4 with 0 being the best.
In order to better serve our customers,
Hilti subjects all of its firestop and
construction chemical products to the
ASTM G-21 test. The above listed Hilti
products have received an ASTM G-21
rating of 0. Hilti firestop and chemical
construction products not listed here
have been tested for ASTM G21, many
of them receiving an ASTM G-21
rating of 1. A rating of 1 represents a
significantly small amount of growth
(less than 10%) and would still be
considered mold and mildew resistant.
Please ask your local Hilti representative
for more information.