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ISC RTMT Blue Hi-Temp Masking Tape

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  • Quantity
    View Full Pricing Table
    View "Full Pricing Table" below for detailed pricing and additional sizes!
  • Color
  • Roll Size *
    Most Popular Option: 2 in. x 60 yds. (Blue) | See "Pricing Table" below for additional options.
  • Price
    $ Price/photo will update once color & size have been chosen.
Before ordering, please click on the "Product Description & Specs" tab below for more information about this item.

RTMT Standard sizes


3/4 in. x 60 yds.

Actual Size: 18mm x 55m

RTMT 185548

Single Roll (1-47 Rolls)

1 - 2 Cases (48-143 Rolls)

3 - 4 Cases (144-239 Rolls)

5+ Cases (>= 240 Rolls)









1 in. x 60 yds.

Actual Size: 24mm x 55m

RTMT 245536

Single Roll (1-35 Rolls)

1 - 2 Cases (36-107 Rolls)

3 - 4 Cases (108-179 Rolls)

5+ Cases (>= 180 Rolls)









1-1/2 in. x 60 yds.

Actual Size: 36mm x 55m

RTMT 365524

Single Roll (1-23 Rolls)

1 - 2 Cases (24-71 Rolls)

3 - 4 Cases (72-119 Rolls)

5+ Cases (>= 120 Rolls)









2 in. x 60 yds.

Actual Size: 48mm x 55m

RTMT 485524

Single Roll (1-23 Rolls)

1 - 2 Cases (24-71 Rolls)

3 - 4 Cases (72-119 Rolls)

5+ Cases (>= 120 Rolls)









Nominal Tape Widths vs Actual Widths

Nominal vs. Actual Widths Zoom In

Tape rolls are cut to standard tape industry metric widths of approx. 24mm per 1-inch of nominal width ordered. As a result ACTUAL tape widths are normally 5% narrower than the NOMINAL width shown in inches. Examples:

  • 1" Nominal width = 15/16" (24mm) Actual width
  • 2" Nominal width = 1-7/8" (48mm) Actual width
  • 3" Nominal width = 2-13/16" (72mm) Actual width

Note that tape rolls are NOT guaranteed to be splice-free.

Product Description

ISC Racers Tape Blue Hi-Temp Masking Tape is a masking tape used for auto body automotive work (not your standard blue painters tape). It is engineered for the racing fabrication industry and is designed to be residue-free even under extreme conditions. ISC's Blue Hi-Temp Masking is ideal for use in painting, metal fabrication and powder coating in the racing and marine industries.The tape can resist a range of temperatures, up to 250 °F for 30 minutes (suitable for medium temperature paint bake operations). Even when subject to high temperatures, a cured rubber adhesive system allows for clean removal from metal, rubber, plastics and other surfaces and still results in sharp paint lines. The tape is conformable to irregular surfaces and it resists solvents and moisture to minimize paint bleed-through and rework. It is also compatible with solvent and latex based paints and its strong crepe paper backing (which is treated with heat and solvent resistant saturant) resists tears and silvers.


Technical Information

ISC RTMT Blue Hi-Temp Masking Tape
  • Adhesive: cured rubber   How are adhesives different?
  • Carrier/Backing: treated crepe paper
  • Thickness: 6.3 mils (carrier, adhesive)    What is a mil?
  • Adhesion: 37 ounces per inch (to stainless steel)
  • Tensile Strength: 27 pounds per inch (longitudinal)
  • Service/Operating Temperature: up to 250°F
  • Elongation: 8%
  • Core: 3" diameter
Note: Specifications are those given by manufacturers and are not tested for accuracy.

AlertRoll Sizes/Widths:

Please note that tape rolls are NOT guaranteed to be splice- free. Tape rolls are typically cut to standard tape industry metric-cut sizes - or approx 5% narrower than the nominal size (i.e. 24mm per 1-inch of nominal width ordered).

Please contact us to inquire about pricing for full-cut widths (e.g. a 6 inch roll cut to exactly 152mm instead of 144mm).

Alternative to...

This product can be used as an alternative to the following products(s):

  • Shurtape #CP-450 and #CP-500
  • Intertape #PG-14 and #PK-24
PLEASE NOTE: "Alternative" to is NOT the same as equivalent to so please ensure the specifications listed are suitable for your application.
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ISC RTMT Blue Hi-Temp Masking Tape
hot melt rubber (synthetic)
Offers the widest range of application flexibility available. Exhibits excellent processing performance whether manually or automatically applied. Has superior tensile strength, adhesion properties and holding force which ensures consistent, reliable seals. Hot melt adhesive will bond faster to a surface which is referred to as quick-grab or quick-stick. It typically has higher tack (will feel stickier to the touch), but is also softer. It has lower heat resistance, shear resistance, and sometimes UV resistance than an acrylic adhesive. NOTE: it is called hot melt because the adhesive is applied hot by the manufacturer and then hardens as it cools (you do not need to apply heat to the tape yourself).
natural rubber
Properties are similar to that of hot melt rubber, but natural rubber often holds where other adhesives won't (recycled fibers, dust, cold, heat and heavy loads). It provides good overall adhesion and moisture resistance.
Offer excellent performance, especially for applications in temperatures less than 40°F and greater then 120°F. It provides excellent clarity, has high shear strength, is usually more permanent/durable even when exposed to moisture, and it ages well over extended periods in fluorescent and sunlight. Since it remains clear for the life of the application and does not yellow over time it is ideal for applications such as sealing white cartons. While it has good initial adhesion it does take 24-48 hours to cure and to achieve its maximum bond strength (has gradual adhesion buildup). Another difference between hot melt rubber and acrylic adhesive is if you fold tape over making the two adhesive sides touch the acrylic adhesive will remain attached to the carrier (e.g. paper, film) while a hot melt adhesive will stick to itself and pull off of the carrier. It is the best choice for clarity, UV resistance and aging characteristics.
Is great for extreme temperature applications since silicone adhesive can work in continuous operating temperatures from -100°F to 500°F. They also exhibit good chemical resistance, retain electrical properties, and remove cleanly with little or no residue.
zinc oxide
Zinc oxide based adhesive formula is a skin-friendly adhesive which is commonly used on sports medicine tapes.
1 mil = 1/1000 of an inch
Examples: 1/16 inch = 62.5 mils; 1/32 inch = 31.25 mils
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