Shop STI

STI® LCI300 Intumescent Firestop Sealant, Tube Container, Paste Form, Red, Mild Acrylic Odor/Scent, 40 to 95°F HSI#: FRS10005
In stock

$14.11
$14.11

Quantity
STI® LCI320 Intumescent Firestop Sealant, Sausage Container, Aluminum Trihydrate, Crystalline Silica and Sulfuric Acid Compound HSI#: FRS10007
In stock

$18.90
$18.90

Quantity
STI® SSP100 Putty, Composition: Aluminum Trihydrate HSI#: FRS10028
In stock

$48.21
$48.21

Quantity
STI® CF34 Closet Flange Firestop Gasket, ASTM E814, ANSI/UL 1479, CAN/ULC-S115 HSI#: CF34-12930
In stock

$25.89
$25.89

Quantity
STI® SSP9S Intumescent Fire Stop Putty, Pad, Red, -10 to 120°F HSI#: FRS10075
In stock

$8.82
$8.82

Quantity
STI® LCC300 Intumescent Firestop Collar, Use with Plastic Pipe, Galvanized Steel HSI#: FRS10002
In stock

$22.28
$22.28

Quantity
STI® SSAMW Rectangular Mineral Board, for use with Fire Barrier Spray HSI#: SSAMW-12930
Call for availability

$69.84
$69.84

Quantity
STI® Z1005-892-CG Fire Penetration Warning Label, 4-1/2 in H x 5-3/8 in L, Red/White, 1000 per Roll HSI#: FRS10032
In stock

$0.72
$0.72

Quantity
STI® SSWBLU230 SpecSeal® Flexible Pre-Cut Intumescent Wrap Strip, 11-1/4 in L x 3 in W, Up to 4 hr Fire Rating, Plastic HSI#: SSWBLU230-12930
In stock

$10.95
$10.95

Quantity
STI® ES120 SpecSeal® ES Series Elastomeric Flexible Firestop Sealant, Sausage Container HSI#: FRS10042
In stock

$16.30
$16.30

Quantity
STI® RFG2 Ez-Firestop® 2 pc Split Cable Grommet, ASTM E814, ANSI/UL 1479, CAN/ULC-S115, cULus Listed, UL File No R14579 HSI#: FRS10070
In stock

$63.51
$63.51

Quantity
STI® RFG1 Ez-Firestop® 2 pc Split Cable Grommet, ASTM E814, ANSI/UL 1479, CAN/ULC-S115, cULus Listed, UL File No R14579 HSI#: FRS10065
In stock

$41.21
$41.21

Quantity
STI® EZ-Path® EZDP133CWK Fire-Rated Pathway Circular Plate Kit, Upto 4 hr Fire Rating, Galvanized Steel, ASTM E814, CAN/ULC-S115, cULus Listed HSI#: FRS10060
In stock

$244.74
$244.74

Quantity
STI® SIL320SL Firestop Sealant, Sausage Container, Silicone, Off White, <47 g/L VOC HSI#: FRS10048
In stock

$25.10
$25.10

Quantity
STI® SSC600 Intumescent Firestop Collar, For Use with Plastic Pipe, Galvanized Steel HSI#: FRS10051
In stock

$94.46
$94.46

Quantity
STI® SSB36 Intumescent Firestop Pillow, 9 in L x 3 in W, Intumescent, ASTM E 814 HSI#: FRS10031
In stock

$26.61
$26.61

Quantity
STI® SSS120 Intumescent Firestop Sealant, Sausage Container, Paste Form, Fire Rating: 4 hr, Red, Mild Acrylic Odor/Scent, 40 to 95°F HSI#: FRS10022
In stock

$35.21
$35.21

Quantity
STI® SSB26 Intumescent Firestop Pillow, 9 in L x 6 in W, 4 hr Fire Rating, ASTM E814, CAN/ULC-S115, cULus Listed, FM Approved HSI#: FRS10027
In stock

$21.96
$21.96

Quantity
STI® SSB14 Intumescent Firestop Pillow, Red, 9 in L x 1 in W, ASTM E 814, SSB Series HSI#: FRS10026
In stock

$17.15
$17.15

Quantity
STI® LCI305 Intumescent Firestop Sealant, 5 gal Pail, 1155 cu-in, Sulfuric Acid Compound with Graphite and Crystalline Silica, Red HSI#: FRS10010
In stock

$451.88
$451.88

Quantity