Machineable Plastic

TEST	BUTTER- BOARD R1/BB	R1/HG3000	R1/M15.2	EASY GREEN* R1/P1
Density lbs. per cu. ft.	48	101	60	60
Shore D Hardness	63	76	67	65
Compressive Strength psi	2290	4230	3630	3050
"  Mod-E psi	.0744 E6	0.397 E6	0.214 E6	0.128 E6
Tensile Strength psi	2030	1740	2180	1130
"  Mod-E psi	.0756 E6	0.397 E6	0.214 E6	0.128 E6
Flexural Strength	2880	3920	4290	3410
"  Mod-E psi	.0827 E6	0.324 E6	0.324 E6	0.0995 E6
C.T.E.   in./in./* F.	73.2 x 10 (-6)	37 x 10 (-6)	40 x 10 (-6)	72 x 10 ( -6)
Glass Transition Temp	248* F.	237* F.	214* F.	-
Thermal Conductivity BTU-hr*F	-	1.9	-	-
Melting Point	-	-	-	277* F.
Color	pale butter	pale gray	off white/tan	green
Non-abrasive	yes	no	no	yes
Resistant to most solvents	yes	yes	yes
Min./Max. cast thickness	1.65" to 6"	1.65" to unlimited	1.65" to unlimited	1.65" to unlimited

 

NC PROOFBOARD^®   Test Data
 

TEST	4-D	6-D	10-D	15-D	18-D	20-D	30-D	40-D
Compressive   Strength ASTM D-1621	87 psi	100 psi	240 psi	700 psi	800 psi	920 psi	1590 psi	1870 psi
Tensile   Strength ASTM D-1623	58 psi	145 psi	280 psi	475 psi	590 psi	730 psi	1100 psi	2120 psi
Shear    Strength ASTM D-273	25 psi	85 psi	155 psi	250 psi	250 psi	420 psi	575 psi	1070 psi
Flexural Strength	-	300 psi	500 psi	750 psi	960 psi	1100 psi	-	-
Dimensional Stability  ASTM D-2126	+1.2%	+1.1%	+0.3%	+1.2%	+02%	+0.1%	+1/2%	+1.2%
Water Absorption   Vol %       ASTM D-2842	0.056% after 96 hrs.	.03%   after 24 hrs.	.009    after 24 hrs.	.4% after 96 hrs.	.03%   after 24 hrs.	.03%   after 24 hrs.	.4% after 96 hrs.	.056% after 96 hrs.
Closed Cell    Content  ASTM D-2856	97%	95%	95%	97%	95%	97%	97%	97%
'K' Factor   ASTM D-17	0.20	.15	.16	.17	.17	.384	.47	.51
'R' Factor ASTMD-C-177	-	4	3	2.6   per in	2.78	2.1	-	-
Maximum Service    Temp, Dry	300° F.	300° F.	300° F.	300° F.	300° F.	300° F.	300° F.	300° F.
Impact Resistance 0° 4.6 oz. 1" diam 9'6" drop	-	-	-	no  cracking observed	no  cracking observed	no  cracking observed	no  cracking observed	no  cracking observed
Freeze/Thaw ASTM D-2126, 26cycles	-	-	-	no  separation   or  distortion	no  separation   or  distortion	no  separation   or  distortion	no  separation   or  distortion	no  separation or   distortion
Mold & Mildew Resistance ASTM D-3273	0	0	0	0	0	0	0
Dielectric Constant    ASTM D-1678	1.3	-	1.2	1.3	1.3	1.3	1.3
C.T.E. Coefficient of Thermal Expansion	40x  10(-6)°F	40x  10(-6) °F	40x  10(-6)°F	40x  10(-6) °F	40x  10(-6) °F	40x  10(-6) °F	40x  10(-6) °F	40x  10(-6) °F

Available in a service temperature of 300^o F and 200^o F.

Test reports are believed to be accurate but we offer no guarantee as to accuracy of performance. Final  determination for end use application must be made by the customer. This information is provided as an indication for product and to serve only as a guide for engineering design. NO GUARANTEES OR WARRANTIES, EITHER WRITTEN OR IMPLIED ARE GIVEN. Nothing contained herein shall be construed as a recommendation to use any product in conflict with existing patents covering any material or its use and no license implies or in fact is granted herein under the claims of any patent.  ®Registered names by Goldenwest Mfg. Inc.

Caution: This material can burn, keep away from open flame or sparks. Store shavings in a fire safe container. High speed machining friction can cause smoldering or ignition under the right conditions.

Dust mask and eye protection recommended when machining or sanding this or any other material. Use good hygiene practices for handling nuisance particles. Machine the product only in a properly ventilated exterior area. If the material smokes due to friction, stop working, exhaust air outside, and go to a fresh air area.

Refer to the Material Safety Data Sheet for additional information.

  Resin Comparisons

RESIN: TEST DATA:	802	555	891	709	TUFF CAST	ROTO-ONE	SA90	SA50
GEL TIME (minutes @ 77º F.)	2-3	2-3	2-3	7-9	1-1½	3-6	4-7	4-7
RATIO by Volume	All resins are mixed 50/50 by volume.
RATIO by Weight (A/B)	53/47	52/48	53/47	53/47	53.8/46.2	53/47	52/48	51.8/48.2
VISCOSITY cps (A/B)	35/70-90	35/70-90	40/70-90	40/70-90	125/125	50/100	60/130	350/150
COLOR cured	tan	tan	off white	off white	off white	off white	tan	tan
LINGERING ODOR	yes	yes	no	no	no	no	no	no
RIGID or FLEXIBLE	R	semi-rigid	R	R	R	R	F	F
SPECIFIC GRAVITY A/B	1.104/0.990	1.083/0.995	1.092/0.981	1.106/0.979	1.151/0.988	1.103/0.982	1.12/1.03	1.10/1.02
HARDNESS SHORE	D73	D 70	D72	D72	D72	D75	A90	A50
TENSILE D-638 (psi)	2,500	-	2,400	-	-	2,700	2,000	-
FLEXURAL Strength D-790 psi	4,400	--	4,350	-	-	4,700	-	-
FLEXURAL Modulus D-790 psi	135,000	-	140,000	-	-	150,000	-	-
ULT ELONGATION D-638	20%	-	50%	-	-	15%	270%	-
TEAR RESISTANCE/ DIE-C D-624	110 pli	-	270 pli--	-	-	240 pli	160 pli	60 pli
SPLIT TEAR							40 pli	20 pli
SHRINK %	.25%- 2%	.25%- 2%	.25%- 2%	.25%- 2%	.4%- 2.2%	.25%- 2%	1.5%- 4%	1%-2.5%
HEAT DISTORTION TEMP						Est. 180* F

 

#802: Industrial parts, prototypes, exterior signs, mixes good with M15 and HG3000 fillers. Good for making decorative parts only if painted 100% due to  lingering odor of plastic.

#555 Similar to #802 but is more resilient. Lingering odor.

#891: Good for making small decorative items such as mini refrigerator magnet decor, dolls, miniature cars or models, no odor. Add our fillers to achieve different physical properties.  Also refer to ROTO-ONE for a longer gel time.

#709: Use for making mass cast parts with our fillers to make Machineable plastic for thermoforming tools, patterns, holding fixtures. No odor.

#SA90: Shore A 90 flexible rubber for semi-hard rubber wheels, bumper guards, unbreakable cast plaques.

#SA50: Shore A 50 flexible rubber for bumper guard, cement casting mold.

#ROTO-ONE: Rigid open pour or rotational molding resin.  A little longer gel time and stronger physicals. If you need more time to pour, try this one. Off white.

#TUFF CAST: Very strong impact resin for making bowling balls or other castings where you do not want them to chip or break easily.  White, no odor.