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LK1179 (LK1179)

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About This Locking Gasket

Trim-Lok’s Two-Piece Locking Gasket measures 1.055” tall x 0.278” wide x 1/8” edge and accommodates a ¼” piece of window glass. This two-piece locking gasket must be used with a locking key available in black or chrome (sold separately) for a snug and secure fit.

Rubber Locking Gasket Applications

This rubber extrusion is designed to lock in the installation of stationary windows or windshields. Locking window gaskets provide a secure seal between a metal or fiberglass body panel and a glass or plexiglass window on: 

  • • Doors
  • • Cars
  • • Trucks
  • • More vehicles of all sizes

Our locking gaskets are also versatile enough to be used in playgrounds, safety equipment, cold-room doors, medical devices, and heavy-duty and semi-truck “peeper” windows.

LK1179 *
Optional Customer Part Number
  • Buy 10 or more and pay $113.10 each (save $14.10 each)
  • Buy 50 or more and pay $93.20 each (save $34.00 each)

*Price breaks, where applicable, will be reflected in cart*


For volume pricing above 5,000 feet, please contact Trim-Lok at 888-874-6565

Price: $127.20

Part Number: LK1179

Description Trim-Lok’s Locking Gasket is a two-piece rubber extrusion designed to lock in the installation of stationary windows or windshields. Locking window gaskets provide a secure seal between a metal or fiberglass body panel and a glass or plexiglass window. 

Rubber window gaskets are available in one-piece and two-piece styles with a lock strip. They are highly resistant to numerous environmental conditions, including ozone, sunlight, severe weather conditions, oxygen, acids and aging. 

For more than 50 years, OEMs across many industries—from automotive to manufacturing and more—have relied on Trim-Lok for high-quality, durable two-piece locking gaskets, trims and seals that meet or exceed their application expectations.
Resistance to Ozone – Excellent
Water Absorption – Excellent
Sunlight Aging – Excellent
Low Temperature – Excellent
General Temperature Rating -40°F to 158°F 
Material G.P 70 Durometer EPDM, Black, dense EPDM rubber to meet ASTM
D2000 M2BA710 C12, EA14, F17, Z1, Z2, Z3; Z1= Comp. Set 22 hrs. @ 100 C, 30% max., Z2= Non-blooming, Z3= 73 +/- 3 (uncured) shore A.
Must be capable to meet EPDM per SAE J200BC715 C12 C 20.
Hardness 70+/- 3
Elongation 200 (250 according to D2000)

Tensile

1450 PSI min.

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View our entire catalog of products or request a free copy be sent to you

Learn how to install a Trim-Lok Two Piece Locking Gasket and see additional size options

How to Install a Rubber Window Gasket

Watch the video below to learn how to properly install your gasket window seal.

Part # Glass Panel Thickness Body Panel Thickness Min Reccomended Clearance Between Glass & Edge Overall Height Min Reccomended Radius of Panel Opening

Weight per Foot

LK1522 0.1875" - .250" 0.035" - 0.067" 0.3125" 1.07" 2.5" 0.275 lbs.
LK1663 0.1875" - .250" 0.09" - 0.14" 0.25" 0.9" 1.5" 0.196 lbs.
LK987 0.1875" - .250" 0.09" - 0.14" 0.3125" 1.07" 2.5" 0.246 lbs.
LK1536 0.1875" - .250" 0.1875" - 0.25" 0.406" 1.09" 3.5" 0.255 lbs.
LK1615 0.1875" - .250" 0.06" - 0.09" 0.3125" 0.906" 2.5" 0.275 lbs.
LK1621 0.1875" - .250" 0.046" - 0.075" 0.125" 0.937" 2.0" 0.260 lbs.
LK1660 0.1875" - .250" 0.075" - 0.140" 0.145" 1.00" 2.0" 0.293 lbs.