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How To Measure and Cut-To-Size Policy | Close it

Cut-To-Size Items are Non-Returnable!

As per our Shipping and Returns Policy, custom cuts and fabricated parts are non-returnable. If you need an over- or undersized item, note it under \"Comments\" during Checkout. Cut-to-size orders have an acceptable cut tolerance of 1/8" (0.125"), so clarify if the adjustment is to be made on the (+) or (-) side of the saw blade. Please review our full return and shipping policy here.

Measure Twice, Cut Once

Since custom cuts and fabricated parts are non-refundable, be very careful while measuring your dimensions. As each cut is nominal, even the slightest miscalculation could be costly.

How to Use a Measuring Tape

Extend your tape measure several inches to find the 1 and 2 inch markers. In between the inch markers you’ll find 16 equally spaced tick marks.

Measure by counting the increments beyond the nearest inch. As the increments decrease, so does the length of the mark. For example, 1/2\" has a bigger mark than 1/4\" which has a bigger mark than 1/8\". The smallest mark follows at 1/16\". Please be aware that some measuring tapes may have even smaller increments.

Features of a Measuring Tape: Sliding End Hook

The sliding end hook is designed for two different types of measurements. An outside measurement (where the hook of the tape hangs over an edge), requires the hook to slide out a bit to account for the thickness of the material. When making an inside measurement (where the hook will push up against a surface), the clip slides in, again, accounting for its thickness. The measuring tape self-adjusts to guarantee an accurate measurement (as far as the tape is concerned).


HDU Board (High Density Urethane) | PBLT-15

HDU Board (High Density Urethane) | PBLT-15

15 Lb Density HDU | Tooling & Signage Board | 100% Waterproof

SKU: PURIFC SH


Save with our Volume Pricing:
QuantityPrice Each
10 - 19$60.75
20 - 49$59.50
50+$56.37

Price for .5" x 20" x 60" Sheet Qty: 1

$62.63


ESTIMATED SHIPPING TO 91770: $97.22
* Prices are subject to change every 6 days
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Description

Low Temperature Tooling Board for Precision Tooling & Exterior Signage

Precision Board High Density Urethane (HDU) PBLT-15 is a rigid, closed-cell polyurethane foam engineered for low temperature tooling applications. With a density of 15 lb/ft3, it provides the structural integrity required for CNC machining while remaining light enough for easy installation of large-scale dimensional signage.

Designed for extreme durability, PBLT-15 withstands continuous exposure to temperatures up to 200°F. Unlike wood, its uniform internal structure is completely waterproof and will not rot, crack, or peel. It is a "workhorse" material that outlasts traditional timber substrates by up to 10 to 1 in outdoor environments.

Looking for a different density? Explore all our available Precision Board densities.

Why Choose PBLT-15 Precision Board?

PBLT-15 is preferred by machinists and sign makers for its superior finish and environmental resilience. It is the correct choice if you require:

  • Optimized Machining: Precision Board's closed-cell structure produces more chips and less dust, creating a cleaner workspace and allowing for higher feed rates with standard HSS cutting tools.
  • Thermal & Dimensional Stability: Handles continuous heat up to 200°F without warping, making it ideal for tool proofing, prototyping, and vacuum forming.
  • Sustainability: An environmentally friendly material featuring a certified carbon balance of 3 to 1. It is non-toxic, inert, and contains no VOCs or carcinogens.
  • Zero Absorption: Its closed-cell nature means it won't absorb water, primers, or chemicals, ensuring paint stays on the surface for a vibrant, long-lasting finish.
  • Rigorous Compliance: Meets flammability burn test requirements for ASTM D-1692-74, FAR 25.853, Mil-P-26514, and ASTM D635.

HDU vs. Wood: The 10x Durability Advantage

Precision Board PBLT is the modern replacement for redwood and cedar in the signage industry.

  • Choose PBLT-15 if you need a "knot-free" uniform surface that machines effortlessly in any direction. It saves hours of labor by eliminating the need to sand wood grain or fill natural defects.
  • Choose wood only if you require its authentic wood aesthetic or structural strength. While HDU Precision Board offers excellent durability and moisture resistance, wood offers unique natural grain patterns and better performance for large, free-standing dimensional signs.
Precision Board Application Chart

Pictured: HDU Application & Density Comparison Chart

Fabrication & Tooling Compatibility

This material is exceptionally friendly to standard woodworking and machining tools. You can drill, rout, and cut PBLT-15 with ease. In CNC operations, it produces "crisp" chips that are easily vacuumed, rather than the fine, airborne dust associated with lower-quality foams. For bonding, use HDU-compatible adhesives to maintain structural integrity across seams.

Not sure which density you need? View our full range of Precision Board options to match your specific strength and weight requirements:

Trusted Industry Expertise

When you order from Interstate Advanced Materials, you're accessing an expansive nationwide network of material expertise. As a premier distributor of Precision Board HDU, we ensure every sheet is of the material quality and consistency that aerospace engineers, master model makers, and professional sign shops rely on for their most critical projects.

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Specifications

Material: POLYURETHANE, RIGID
Water Absorption: .02% @ 96 hrs.
Density: 15 lbs./ft.^3
Tensile Strength: 395 psi
Tensile Modulus: 32060 psi
Elongation: 6.8%
Hardness: 22 (Shore D)
Compressive Strength: 510 psi
Compressive Modulus: 20360 psi
Dielectric Constant: 1.3

Frequently Asked Questions



What is Interstate Advanced Materials's Shipping Policy?
Our shipping policy can be found here and orders placed for non-cut-to-size stock items typically ship within 3 working days.

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Disclaimer: Interstate Advanced Materials makes no representations about any of its products that are modified in any way after they leave its possession, nor do its representations apply when any of its products are improperly used or stored. Each customer of Interstate Advanced Materials bears full responsibility for making its own determination as to the suitability of each material, product, recommendation or advice provided by Interstate Advanced Materials. Each customer of Interstate Advanced Materials must identify and perform all tests and analyses necessary to assure that its finished parts incorporating materials from Interstate Advanced Materials will be safe and suitable for use under end-use conditions.