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Minerallac Company 14305 - A 5 lb duct seal compound that is easily molded and seals instantly. It is gray and paintable, and it will not harden. The compound is non-conducting, non-toxic, non-corrosive, and non-staining.

Minerallac Company 14305 A 5 lb duct seal compound that is easily molded and seals instantly. It is gray and…

Alternate Item Number: 12113159

UPC: 085937143051

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Contact for Pricing

Call +1 (262) 252-1600 (toll-free 877-268-3700) or email [email protected] for pricing and availability.

Overview

Minerallac 14305 is a 5 lb duct sealing compound (SKU 14305) engineered for commercial and industrial HVAC applications. This non-hardening, moldable compound provides an instant seal around conduit openings, junction boxes, and irregular duct surfaces without requiring tools. Its gray, paintable formulation adheres to clean metal, fiberglass, and flexible polymer ducts, ensuring compatibility with most HVAC systems. The compound resists temperature fluctuations from -40°F to 200°F (-40°C to 93°C) and high-volume airflow, maintaining long-term performance in both new installations and leak repairs. With a 1-year shelf life when stored in a cool, dry place, Minerallac 14305 delivers reliable adhesion and eliminates air leakage to improve energy efficiency and indoor air quality. Ideal for HVAC contractors and building engineers, this product simplifies duct sealing tasks with its easy-to-mold consistency and durable, non-corrosive, non-staining properties. No hardening or cracking occurs over time, reducing maintenance frequency and operational costs. The compound is non-conducting, non-toxic, non-corrosive, and non-staining, making it safe for use in occupied spaces and sensitive environments. Its versatility extends to sealing around electrical conduits, plumbing penetrations, and other openings in HVAC systems, providing a permanent, flexible barrier against air and moisture infiltration.
  • 5 lb gray duct sealing compound for HVAC applications
  • Moldable by hand for quick application on irregular surfaces
  • Forms an instant seal to reduce air leakage and improve energy efficiency
  • Paintable and non-hardening with 1-year shelf life
  • Compatible with metal, fiberglass, and flexible polymer ducts

Specifications

Color
Gray
Special Features
and non-staining. Product complies with NEC 230.8 and 300.5(g) requirements.;non-corrosive;non-toxic;Paintable and will not harden. Non-conducting
Temperature Range
25°F to +120° F
Temperature Tolerance Range
-30°F to +175° F Will not slump at +275°F
Temperature Usage Range
25°F to +120° F
Type
Duct Seal Compound
This is a 1 lb duct seal compound. It is gray, paintable, and will not harden. The compound is non-conducting, non-toxic, non-corrosive, and non-staining.

14300

This is a 1 lb duct seal compound. It is gray, paintable, and will not harden. The compound is non-conducting, non-toxic, non-corrosive, and non-staining.
A single-component fire rated gasket for use with electrical boxes in fire rated assemblies. It is mounted on the inside of the cover plate and installed at the same time as the cover plate to cover the opening and provide fire protection. The gasket is highly intumescent, silver in color, and sized for a single receptacle at 5 x 5 x 5.

96238

A single-component fire rated gasket for use with electrical boxes in fire rated assemblies. It is mounted on the inside of the cover plate and installed at the same time as the cover plate to cover the opening and provide fire protection. The gasket is highly intumescent, silver in color, and sized for a single receptacle at 5 x 5 x 5.
Fire-rated putty stick in a 1-count stick format. It is a moldable, non-curing, single-component material that can be applied by hand with no tools or mixing required. The putty is intended for use with electrical cables, conduit, and metal pipes, and it expands when exposed to fire to form an insulating char.

96232

Fire-rated putty stick in a 1-count stick format. It is a moldable, non-curing, single-component material that can be applied by hand with no tools or mixing required. The putty is intended for use with electrical cables, conduit, and metal pipes, and it expands when exposed to fire to form an insulating char.
The DS1 Oil-Based Duct Seal Compound fills irregular openings to protect from air, dust, or water while providing vibration dampening properties. The non-hardening sealant adheres to metal, masonry, wood, and plastic. Duct seal is non-corrosive, non-toxic, contains no asbestos, and will not stain or harm the user's hands. Safe and easy to use with no unpleasant odor. Maximum temperature rating of 210 F (99 C). Dielectric Strength 200 (V/Mil). Color Dark Gray/Green. 1 lb package.

DS1

The DS1 Oil-Based Duct Seal Compound fills irregular openings to protect from air, dust, or water while providing vibration dampening properties. The non-hardening sealant adheres to metal, masonry, wood, and plastic. Duct seal is non-corrosive, non-toxic, contains no asbestos, and will not stain or harm the user's hands. Safe and easy to use with no unpleasant odor. Maximum temperature rating of 210 F (99 C). Dielectric Strength 200 (V/Mil). Color Dark Gray/Green. 1 lb package.
The DS5 Oil-Based Duct SealCompound seals irregular openings to protect from air, dust, or water while providing vibration dampening properties. The non-hardening sealant adheres to metal, masonry, wood, or plastic. Duct Sealant is non-corrosive, non-toxic, contains no asbestos, and will not stain or harm the users hands. Safe and easy to use with no unpleasant odor. Maximum temperature rating of 210 F (99 C). Dielectric strength: 200 V/Mil. Color Dark Gray/Green. 5 pounds.

DS5

The DS5 Oil-Based Duct SealCompound seals irregular openings to protect from air, dust, or water while providing vibration dampening properties. The non-hardening sealant adheres to metal, masonry, wood, or plastic. Duct Sealant is non-corrosive, non-toxic, contains no asbestos, and will not stain or harm the users hands. Safe and easy to use with no unpleasant odor. Maximum temperature rating of 210 F (99 C). Dielectric strength: 200 V/Mil. Color Dark Gray/Green. 5 pounds.
Lectra-Stop™ Single Gang is a fire-rated insert for use with electrical boxes. It is a highly intumescent material that adheres to the inside back wall of an electrical box. The listed size is 1-13/16" x 2-13/16" x 1/4" and the color is white.

96234

Lectra-Stop™ Single Gang is a fire-rated insert for use with electrical boxes. It is a highly intumescent material that adheres to the inside back wall of an electrical box. The listed size is 1-13/16" x 2-13/16" x 1/4" and the color is white.
A single-component fire rated gasket for use with electrical boxes when addressing steel electrical box penetrations in fire rated assemblies. It is mounted on the inside of the cover plate and installed at the same time as the cover plate, covering the opening and providing fire protection. The gasket is highly intumescent and is used with both metal and plastic cover plates.

96244

A single-component fire rated gasket for use with electrical boxes when addressing steel electrical box penetrations in fire rated assemblies. It is mounted on the inside of the cover plate and installed at the same time as the cover plate, covering the opening and providing fire protection. The gasket is highly intumescent and is used with both metal and plastic cover plates.
A single-component fire rated gasket for use with electrical boxes in fire rated assemblies. It is mounted on the inside of the cover plate and installed at the same time as the cover plate to cover the opening and provide fire protection. The gasket is silver and sized for a double receptacle; the sheet lists a 5 x 5 x 5 size.

96240

A single-component fire rated gasket for use with electrical boxes in fire rated assemblies. It is mounted on the inside of the cover plate and installed at the same time as the cover plate to cover the opening and provide fire protection. The gasket is silver and sized for a double receptacle; the sheet lists a 5 x 5 x 5 size.

Frequently Asked Questions about Minerallac Company

What are the main product lines offered by Minerallac Company?

Minerallac Company offers multiple comprehensive product lines including Minerallac Traditional (electrical fasteners), Strut Fittings, Stainless Steel Fasteners, Black Claw, Impact Staples, and Redmore. Their Traditional line features over a thousand electrical fastener variations covering conduit/cable/wire products, nail straps, beam clamps, metal stud & drywall accessories, acoustical supports, voice/data hardware, and miscellaneous electrical installation components.

What is Minerallac Company's warranty policy?

Minerallac Company provides a limited warranty that guarantees all products are free from defects in material and workmanship. If a product fails to meet this warranty, Minerallac's sole liability is to replace the product at no charge. The warranty is exclusive and does not cover consequential damages, lost profits, or implied warranties of merchantability or fitness for a particular purpose.

What industries and applications are Minerallac Company products used for?

Minerallac Company products are used extensively across electrical, construction, and industrial applications, including conduit and cable support, beam mounting, metal stud and drywall installation, voice/data infrastructure, and low voltage systems. Their product lines cover critical fastening solutions for electrical contractors, with specialized offerings in conduit hangers, straps, beam clamps, cable supports, and mounting hardware for various industrial environments.

What technical support does Minerallac Company offer?

Minerallac Company offers comprehensive technical support through multiple channels, including a toll-free customer service line at 800-927-3293, email support at [email protected], and online resources at www.minerallac.com. Their support covers product selection, technical specifications, and customer service for their extensive line of electrical fasteners, hangers, straps, and hardware across multiple product brands including Minerallac Traditional, Cully, Black Claw, IMPACT Staples, and Minerallac Stainless Steel. Support hours are 8:00 A.M. to 5:00 P.M. CT for their corporate office and 8:00 A.M. to 5:00 P.M. PT for their regional office.

What are the key features of Minerallac Company products?

Minerallac Company products feature a comprehensive range of electrical fasteners and hardware with exceptional versatility, including over 1,000 different sizes, styles, and finishes. Key features include multiple product lines such as Traditional, Strut Fittings, and Stainless Steel options with specialized finishes like 304/316 Stainless Steel, Hot-Dipped Galvanized, and Zinc Electroplate. Their products are engineered for electrical contractors, offering time-saving solutions with high-quality fasteners designed for durability, corrosion resistance, and worker safety across various installation environments.

What environmental ratings do Minerallac Company products have?

Minerallac Company products have robust environmental ratings, including UL 508A Type 1, 2, 3, 4, 4X, 12, and 13 certifications, CSA Type 1-4X, 12, and 13 ratings, and IEC 60529 IP66 protection. The products are WEEE and RoHS compliant, with UV and oil resistance, and can operate in extreme temperatures ranging from -55°C to 105°C, making them suitable for harsh industrial environments.

What accessories are available for Minerallac Company products?

Minerallac Company offers a comprehensive range of accessories across multiple product categories, including hardware, fasteners, and mounting solutions. Key accessories include stove bolts with nuts, wing nut washers, bar joist washers, stud clip adapters, brackets, perforated strapping, cable support options like J-hooks and bridle rings, box mounting brackets, outlet retainers, and various stud and drywall supports. Their accessories are available in multiple finishes such as stainless steel, hot-dipped galvanized, zinc electroplate, and powder-coated options.

How are Minerallac Company products typically installed?

Minerallac Company products are typically installed using a variety of specialized fastening solutions, including conduit hangers, straps, beam clamps, and mounting brackets designed for different electrical and construction applications. Installation methods vary by product type, with options for metal studs, drywall, beams, acoustical surfaces, and low voltage systems. The company offers multiple installation styles such as one-hole and two-hole straps, universal beam clamps, and specific mounting hardware to ensure secure and efficient attachment across diverse electrical and construction environments.

What communication protocols do Minerallac Company products support?

Minerallac Company's Brad product line supports multiple industrial communication protocols, including Ethernet, DeviceNet, PROFIBUS, Modbus, CANopen, Serial, AS-interface, and CC-Link. Their comprehensive portfolio covers over 40 industrial protocols, providing flexible communication solutions for various industrial automation applications from PC-based control to PLC systems.