Appleton ALESKO Epoxy Sealing ...
IN STOCK (leaves warehouse same day if ordered before 3pm ET)
$165.44
Appleton ALESKO Epoxy Sealing Putty, Two-Part Hazardous Location Sealant

Appleton ALESKO Epoxy Sealing Putty, Two-Part Hazardous Location Sealant

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Model: ALE250

In Stock (leaves warehouse same day if ordered before 3pm ET)

$165.44
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Appleton ALESKO Epoxy Sealing Putty, Two-Part Hazardous Location Sealant

Appleton ALESKO epoxy sealing putty is a two-part liquid epoxy sealing compound engineered for sealing fittings installed in hazardous locations. Supplied in a double barrel dispensing tube, ALESKO prevents the passage of gases, vapors, or flames from one portion of conduit to another, restricting any explosion to the sealed-off enclosure. Sealing fittings using ALESKO are required in Class I, Zone 1 and 2 (Division 1 and 2) locations within 18' of enclosures containing apparatus that may arc, spark, or reach high temperatures, and the compound is rated for operation from -40 °C to +121 °C (-40 °F to +250 °F).

Key Features

  • Two-Part Epoxy System: Liquid epoxy seal compound supplied in a double barrel dispensing tube for automatic mixing.
  • Automatic Mixing: The two-part epoxy resin and hardener mix automatically as they travel through the static-mixing nozzle, keeping the process fully contained in the dispensing tools.
  • High-Thrust Dispensing Gun: A robust two-speed drive system delivers up to 499 kg (1100 lb) of propulsion, with a dent-resistant rod and settings for both high-viscosity and low-to-moderate viscosity materials.
  • Reduced Waste: Unused epoxy resin and hardener remaining in the tube can be stored for later use by replacing the mixing nozzle with a dispensing tube plug.
  • Labor Savings: Quick, accurate, and efficient mixing and filling reduces installation labor cost.
  • Coverage: Each tube will seal over 20 1/2" seals.
  • Application Limit: ALESKO is not suitable for use in acetic acid atmospheres.

Certifications & Compliance

  • Rated for Ordinary (Unclassified) Locations per CEC

Technical Specifications

  • Operating Temperature: -40 °C to +121 °C (-40 °F to +250 °F)
  • CEC Certifications and Compliances: Rated for Ordinary (Unclassified) Locations

Typical Applications

  • Hazardous Location Conduit Sealing Fittings
  • Class I, Zone 1 and 2 Installations
  • Division 1 and 2 Hazardous Areas
  • Industrial and Petrochemical Facilities
  • Enclosures Near Arcing, Sparking, or High-Temperature Apparatus

Why Appleton?

Appleton engineers ALESKO epoxy sealing putty with a robust two-speed dispensing gun and automatic static-mixing nozzle to deliver consistent, contained epoxy seals for hazardous location conduit fittings. The two-part system supports accurate, code-compliant sealing that helps restrict the passage of gases, vapors, and flames, making it a dependable choice for professional electrical installations in classified locations.

Manufacturer Resources

Appleton Full Line Catalog

Product Specs

Product Type:
Sealing Compound
Product Material:
Epoxy
Department:
Electrical
Product Group:
Jobsite Supplies
Product Subgroup:
Sealants

Appleton ALE250 – Frequently Asked Questions

1) What is Appleton ALESKO epoxy sealing putty used for?
ALESKO is a two-part liquid epoxy compound poured into conduit sealing fittings in hazardous locations. Once cured it blocks gases, vapors, and flames from traveling through the conduit from one area to another, so an ignition stays confined to the sealed-off enclosure. It is the fill material, not the fitting, so you order it alongside the seal fittings you are packing.
2) Where in a Class I installation are these seals actually required?
Sealing fittings filled with ALESKO are required in Class I, Zone 1 and 2 (Division 1 and 2) locations within 18 feet of enclosures housing apparatus that can arc, spark, or run at high temperature. That covers most petrochemical and industrial classified-area conduit runs feeding switches, contactors, and heaters.
3) Is there any atmosphere where ALESKO should not be used?
Yes. ALESKO is not suitable for acetic acid atmospheres. If the area has acetic acid exposure, specify a different sealing compound for those fittings.
4) What temperature range will Appleton ALESKO sealing compound hold up to?
Rated for service from -40 C to +121 C (-40 F to +250 F), so it works outdoors in cold climates and around warm process piping alike.
5) Do I have to mix the resin and hardener by hand?
No hand mixing. The resin and hardener sit in a double barrel tube and combine automatically as they pass through the static-mixing nozzle, so the epoxy stays contained in the dispensing tools and you get a consistent ratio on every seal.
6) Is ALESKO a putty you pack by hand like traditional sealing cement?
No. Traditional seal packing uses a fiber dam plus a powdered cement you mix with water and pour. ALESKO instead dispenses as a mixed liquid epoxy straight from the tube through the nozzle, which cuts mixing time and labor on each fitting. If your spec calls out a specific powdered sealing cement, ALESKO is a different product and not a drop-in for it.
7) Can I save a partly used tube of ALESKO for the next job?
Yes. Swap the used mixing nozzle for a dispensing tube plug and the remaining resin and hardener can be stored for later use, which is why one tube can cover several service calls instead of being scrapped after one seal.
How fast can I get the Appleton ALE250 delivered?
Most orders ship the same day from our distribution partners, with quick delivery throughout the continental U.S. Need it urgently? Contact Us for expedited shipping options.
Can I return it if it doesn’t work for me?
Yes—ZenSupply offers a hassle-free return policy. If the product isn’t the right fit, reach out to our support team for a return authorization or setup a return by following our return instructions.
Does the Appleton ALE250 come with a warranty?
Absolutely. The Appleton ALE250 is backed by a manufacturer’s warranty. For full warranty terms, check the product documentation or Contact Us.
How do I get technical support or installation help for the Appleton ALE250?
You can call, text, or email our expert support team for fast answers. We’re here to help with product selection, installation tips, and troubleshooting. Contact Us
Why buy the Appleton ALE250 from ZenSupply?
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