Backer Hotwatt Accessories

Individual Ceramic Terminal Covers are designed to protect the operator from exposed terminals. The cover body is slotted to receive two wires and may be installed after wiring has been completed.

Each assembly consists of a male and female ceramic insulator with stainless steel screw with two flat washers, one lockwasher, two hex nuts, and two fiberwashers. Ceramic bushings without hardware are also available.

Temperatures up to 1200°F (650°C) – for abrasion protection and extra electrical insulation. Natural (tan) Coloring 100 foot spools

Temperatures up to 428°F (220°C) – for abrasion protection, extra electrical insulation and moisture resistance.White Coloring 100 foot spools

Serviceable to 1200°F (649°C)

• Glass Cloth Tape No.27 is a high heat splicing tape composed of a glass cloth locking and an adhesive that thermosets in high heat application environments. It is a Class B 266°F (130°C) electrical insulation.
• Catalog No.27 – 1/2″ wide x 66′ long

• This cement insulates electricity but radiates heat. It also resists acids, oils, and temperatures up to 3000°F. This is the same cement Backer Hotwatt uses in electric heating elements and can be used for electric kilns, furnaces, and resistors. The cement hardens into a porcelain-like body by air drying without the use of kilns or injury to the finest resistant wire.
• Catalog No. C-78, 1 Quart Container.

• The high temperature insulated wires are for use in internal wiring of domestic, commercial,and industrial heating, cooking, and process equipment.
• Wires are suitable for service up to the rated voltage in damp and dry applications with wire temperatures up to 250°C (482°F); with intermittent use in ambients as high as 650°F.
• Wires are identical to that used on our own heating elements.
• Available in 100 foot and 250 foot spools.

• Teflon treated fiberglass braid
• Fiberglass
• Teflon tape wrap
• Flexible, stranded nickel conductor

1. Teflon treated fiberglass overbraid
2. Teflon tape wrap
3. Flexible, stranded nickel plated copper conductor

RESISTANCE WIRE: NICKEL CHROMIUM

• Backer Hotwatt’s nickel-chromium wire (80ni-20cr) is proven to deliver outstanding performance over extended periods of time and is the same wire we use in our own electrical heating elements.
• Uniformity of resistance.
• Mechanical stability
• Fine surface finish
• Consult factory for specifications on other sizes and different alloys which are available. Typically Iron-Chromium-Aluminum alloy, Nickel-Iron Alloy, and Thermocouple Alloys.

Current Carrying Capacity of Straight Nickel Chromium Wire

Approximate Amperes to heat straight, oxidized wire in quiet air to given temperature

Current Carrying Capacity of Ribbon Nickel Chromium Wire

At 1200°F Approx.

• Hot Lube can greatly reduce heater-to-bore seizure when properly applied.
• Improves Thermal Conductivity. Heat transfers more quickly from heater to part being heated when Hot Lube is used.
• Increased Heater Life. Tighter fit made practical with use of Hot Lube.
• Not electrically conductive.
• Hot Lube solution is not considered hazardous.
• Easy to use.
• Withstands Temperatures to 1600°F (875°C).
• 4 oz. covers approximately 1500 square inches.

• Heater surface should be clean and dry.
• Shake Hot Lube well before use.
• Brush on a light uniform coat of Hot Lube.
• Allow to air dry for 20 minutes or oven dry at low temperature (140°F maximum).