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Series 400 Construction
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Quality Features and Materials
Standard laboratory tests and field experience with various dock seal, dock shelter and rail shelter cover fabrics provide long life and superior tear strength, abrasion resistance, resistance to low temperature cold cracking and weatherability. Chalfant dock seal, dock shelter and rail shelter fabric selections include; vinyl, hypalon and neoprene coated nylon. See fabric weights, types and colors in our fabric performance section.











Head Curtain Assembly - Reinforce fiberglass top attached to wood frame and supported by mounting brackets. The head curtain is attached to head frame by lags and includes three (3) wear pleats at corners of the curtain.
Wood Mounting Base - Chalfant Dock Seals are factory assembled and mounted to kiln dried 2" wood and feature "Weathertight Construction" completely encased inside of the pad cover to protect it from abuse and outside elements.
Adhesive - Polyurethane foam pads are bonded to the wood mounting base with a high quality liquid chemical adhesive for added support.
Premium Grade Polyurethane Foam Pad - Foam pad is standard 1.00 pound density per cubic foot weight with a 30-pound compression factor, compressing from 12" to 4". Resilient from -50F to +180F. Plus, outstanding aging and non-sagging properties. (Fire retardant foam is available upon request).
Fiberglass Stays - Stays to be contained between outer and inner covers to insure constant pressure with the truck..
Thread - Chalfant carefully selects all materials for durability, including thread which is polyester heavy-duty, minimum size 138 bonded. Meets Federal Specification V-T-285
Guide Stripes and Bottom Wear Face - Made of extra layer of vinyl coated fabric sewn on the face of the side curtains.
Cushions-Bottom Seal - Secured to the inside side pad, cushions seal to truck sides during use and return to shape upon truck departure.
Drain Holes - Our dock seals are equipped with grommet type drain holes to reduce moisture build-up.
Mounting Angle - Galvanized 14 gauge steel mounting brackets are used for standard installations.

Our quality reputation, design, material know-how and fabricating capabilities have kept Chalfant dock seals, dock shelters and rail shelters foremost in the industry. We furnish easy to follow, step-by-step installation instructions and drawings with each order.
Series 400 Soft Seal Shelter Construction
Series 400 Soft Seal Shelter Construction
Photo Gallery
Loading Dock Equipment Application
Loading Dock Equipment Application
Loading Dock Equipment Application
Series 400 Submittal Brochure
Series 400 Specifications
Dock Survey Sheet

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Chalfant Sewing Fabricators, Inc.
11525 Madison Avenue
Cleveland, Ohio 44102-2325

Phone: 800.365.0389 (8 am to 5 pm EST)
Fax: 216.521.9922

Brief product selection...
Guardian 3-in-1 Dock Seal System
Series 100 Standard Dock Seal
Series 101 & 103 Curtain Dock Seal
Series 200 & 205 Adjustable Dock Seal
Series 300 "L" Pad Curtain Dock Seal
Series 400 Soft Seal Shelter
Series 500 Rail Shelter
Series 700 Flex Shelter
Series 700 Rigid Shelter
Universal Dock Recovers
Loading Dock Metal Canopy
Chal-Strip Dor-Closures
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