Tooling & Modeling Board

MB-4000 Tooling Board - Polytek BCC Products, Inc., now part of Polytek Development Corp., has over 25 years of experience in the manufacture of high-quality tooling and modeling boards that are known for their machinability, finish, and durability.

Tooling & Modeling Boards are pre-fabricated, highly machinable, dimensionally stable block materials that assist engineers, model makers, mechanical designers, and prototype developers in meeting the demanding needs of the aerospace, automotive, modeling, and prototyping industries.

The Polytek^®/BCC Product, Inc. portfolio includes varying densities (46 lb/ft³ to 100 lb/ft³) of urethane, aluminum-filled urethane and epoxy board materials.

Review the Application Guide, Specification Guide, Machining Parameters & Board Sizes below to select the product best-suited for your application.

Please contact Polytek for pricing and availability.

Download the product brochure here.

NOTE: Tooling board colors shown in the image gallery below are only a representation of their color. If color is important, please request a sample of the board you're interested in.

Product Options

Product	Type	Description
MB-2001 Model Board	Polyurethane	A dense, brown-colored urethane board with a ~46 lb/ft3 density. MB-2001 is a highly machinable board, providing a highly defined surface finished. This board is a great choice for master models, various prototypes, short run foundry patterns, and design models. Density: 46 lb/ft³ \| Color: Brown
MB-3500 Tooling Board	Polyurethane	A gray-colored urethane board with a ~48 lb/ft3 density. MB-3500 can replace aluminum and other metals for checking, holding, and assembly fixtures, short run foundry patterns, various prototypes, and design models. Density: 48 lb/ft³ \| Color: Gray
MB-4000 Foundry Board	Polyurethane	An extremely tough, red-colored urethane board with a ~71 lb/ft³ density. MB-4000 is a high-impact urethane that can replace aluminum and other metals in core boxes, stretch forming, foundry patterns, and short run metal stamping, as well as various prototypes and models. MB-4000 has a smooth surface that makes it ideal for vacuum forming clear parts. Density: 71 lb/ft³ \| Color: Red
MB-5000 Metal-Forming Tooling Board	Polyurethane	A high-wear, white-colored urethane board approximately with a ~100 lb/ft³ density. MB-5000 is a high wear, high impact, urethane board that can be used for metal forming as well as nickel plating mandrels. Density: 100 lb/ft³ \| Color: White
MB-8250 Aluminum-Filled Tooling Board	Aluminum-Filled Polyurethane	A metal-like, aluminum-filled gray colored urethane board approximately with a ~100 lb/ft3 density. It is dimensionally stable and exhibits excellent machinable properties. MB-8250 tooling board will show a significant savings on billet aluminum tooling materials. Density: 100 lb/ft³ \| Color: Gray/Aluminum
EB-6200 High-Temperature Epoxy Tooling Board	Epoxy	A high-temperature blue-colored epoxy board with a ~39 lb/ft³ density. EB-6200 was developed to meet the needs of the aerospace, motor sport, and automotive industries. This board material has excellent cutting performance, high heat resistance, and low coefficient of thermal expansion, making it ideal for master models, lay-up tools for pre-pregs, and other applications where a temperature-stable tool is required. Density: 39 lb/ft³ \| Color: Blue

Application Guide*

*Results and suitability may vary.

Board Material	MB-2001	MB-3500	MB-4000	MB-5000	EB-6200	MB-8250
Models (e.g., Architectural)	IDEAL	Acceptable	-	-	-	-
CNC Proofing	Acceptable	Acceptable	-	-	-	-
Foundry Patterns	Acceptable	Acceptable	IDEAL	Acceptable	-	-
Vacuum-Forming	Acceptable	IDEAL	IDEAL	Acceptable	IDEAL	IDEAL
Metal-Forming	-	-	IDEAL	IDEAL	-	-
Tooling Aids & Fixtures	Acceptable	IDEAL	-	-	-	IDEAL
Master & Lay-Up Tools \| Intermediate-Temperature	-	-	-	-	IDEAL	Acceptable
Master Lay-Up Tools \| High-Temperature	-	-	-	-	IDEAL	-

Specification Guide*

*Results and suitability may vary. ND = Not Determined.

Board Material	MB-2001	MB-3500	MB-4000	MB-5000	EB-6200	MB-8250
Density (lb/ft³)	46.5	48	71	100	40	100
Color	Maghogany (Brown)	Gray	Red	White	Blue	Gray/Aluminum
Shore Hardness	D68	D71-75	D86	D86-90	D72	D85
Tensile Strength (psi)	3,800	6,525	10,890	7,655	ND	4,046
Flexural Strength (psi)	5,150	11,660	17,350	9,980	ND	6,766
Flexural Modulus (psi)	154,200	337,200	428,300	685,000	ND	612,155
Impact Strength (IZOD)	1.92	ND	0.85 (notched), 21.96 (un-notched)	ND	0.56 (notched), 1.05 (un-notched)	1.36 (notched)
Coefficient of Thermal Expansion (in/in)	4.68 x 10^-5	29 x 10^-6	25-28 x 10^-6 (-22°-86°F)	2.29 x 10^-5	19.4 x 10^-6	39.2 x 10^-6
Heat Deflection Temp. (°F)	172	200	214	195	275	175
Glass Transition Temp. (°F)	ND	215	240	215	>305	ND

Machining Parameters*

*Machining parameters can vary depending on a variety of factors. User must determine the correct parameters for the application.

Board Material	MB-2001	MB-3500	MB-4000	MB-5000	EB-6200
Roughing Speed (RPM)	1500-2000	1500-2000	1500-2000	1500-2000	1600
Roughing Feed (IPM)	80-100	50-70	50-70	50-70	40
Roughing Cutters	1/2" Ball End Mill 4 Flute Carbide	1/2" Ball End Mill 4 Flute Carbide	1/2" Ball End Mill 4 Flute Carbide	1/2" Ball End Mill 4 Flute Carbide	1" Ball End Mill 2 Flute Carbide
Finishing Speed (RPM)	10000-12000	3200-6000	3200-6000	3200-6000	10000
Finishing Feed (IPM)	150-200	100-200	100-200	100-200	100
Finishing Cutters	1/2" Ball End Mill 4 Flute Carbide	1/2" Ball End Mill 4 Flute Carbide	1/2" Ball End Mill 4 Flute Carbide	1/2" Ball End Mill 4 Flute Carbide	5/8" Ball End Mill 4 Flute Carbide

Board Sizes

Board Sizes (")	MB-2001	MB-3500	MB-4000	MB-5000	EB-6200	MB-8250
1x24x60	•	•	•	•		•
2x16x60	•	•	•	•		•
2x24x60	•	•	•	•	•	•
3x16x60	•	•	•	•		•
3x24x60	•	•	•	•
4x16x60	•	•	•
4x24x60	•	•	•		•
5x16x60		•
5x24x60	•	•	•
6x16x60	•	•
6x24x60	•	•	•		•

Image Gallery