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Master Appliance 827 mica insulation sheet accessory

Master Appliance

Master Appliance 827 Mica Insulation pneumatic accessory

SKU CH-4JXQ-QCZY7

Mica insulation accessory compatible with part numbers 501, 502, 751, 752, 717 and 718

  • Product typeBroaches
  • Mica insulation protects heating elements
  • Compatible with AH-501 and AH-502 models
  • Fits AH-751 and AH-752 assemblies
  • Cross-references Grainger parts 1YMJ9 4Z717 4Z718 5PYR2

Mica Insulation for Hot-Air Tools

The Master Appliance 827 mica insulation sheet serves as a replaceable thermal barrier inside compatible hot-air tools. It fits units identified by part numbers 501, 502, 751 and 752 so technicians can maintain consistent heat output during shrink-tubing, soldering or drying tasks.

Thermal Performance and Power Draw

The mica sheet withstands the operating temperatures of the listed tools without degrading, keeping external surfaces cooler during continuous use. It adds no measurable electrical load and produces no audible noise because it has no moving parts.

How it compares

Measured against everything we stock in Bits, Hole Saws & Accessory Kits, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 88% of the 5,493 comparable items (median $27.99).

Specifications

Product
Brand nameMASTER APPLIANCE
Product typeBroaches

Questions about this item

How do I install the 827 mica insulation on my AH-501 or AH-502 heat gun, and what step do people get wrong?

The 827 mica insulation fits inside the heater housing of compatible AH-501 and AH-502 models. The step people miss is seating the mica sheet flat against the inner wall before tightening the retaining nut; a folded edge creates a hot spot that burns the element out in minutes.

What maintenance or replacement will the 827 mica insulation need later?

Inspect the mica sheet each time you change the heating element on your AH-751 or AH-752 unit. Replace the 827 insulation if you see discolouration, cracks, or if the sheet has become brittle; a fresh sheet protects the new element from premature failure.

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