Lead Wool, Leaded T's & Wedges
Caulking lead wool in 5 lb bags and 50 lb cartons, certified to Federal Spec QQ-C-40, plus leaded T's and wedges.
Overview
Caulking lead wool in 5 lb bags and 50 lb cartons, certified to Federal Spec QQ-C-40, plus leaded T's and wedges.
Lead Wool, Leaded T’s, And Wedges Lead Wool, a form of caulking lead, consists of long, fine strands of chemical-grade lead twisted into 5/8” rope for use in various applications. Our cold packing is available in 5 lb bags, 50 lb cartons of ten 5 lb bags, or 50 lb bags. To be clear: 2-½ ft of the material weighs about one pound. Mayco’s lead wool is certified to meet Federal Specification QQ-C-40. Call for information about Leaded T’s and Lead Wedges.
Typical applications
Where this product is engineered to perform.
Hub-and-spigot cast iron pipe joint caulking
Sealing joints without open flame or molten lead pouring
Marine keel seam packing and radiation shielding gaps
Structural joint packing in masonry and civil construction
Industries served
Product specifications
| Rope Diameter | 5/8” rope of long, fine chemical-grade lead strands |
|---|---|
| Yield / Weight | 2-1/2 ft of lead wool rope weighs approximately 1 lb |
| Packaging Options | 5 lb bags | 50 lb cartons (ten 5 lb bags) | 50 lb bulk bags |
| Federal Certification | Certified to Federal Specification QQ-C-40 |
| Installation Method | Cold caulking / cold packing (no molten lead or open flame required) |
| Related Components | Leaded T’s and Lead Wedges available upon request |
Specifications subject to custom engineering and alloy options. Contact Mayco engineering for specific sizes, tolerances, and custom certifications.
Need a custom size, alloy, or configuration?
Mayco provides engineering support and design consultation — from small radiation shielding jobs to large ballast projects. Our team can help specify the right product, dimensions, and tolerances for your application.
Every Mayco product is manufactured in-house across our U.S. plants and backed by our ISO 9001 quality system.
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