22MP10553B_TDS.pdf

MP-1055 MODEL PLANK

Technical Data Sheet
POLYURETHANE MODELING BOARD
Masters Patterns Prototypes
Density 41 lbs/ft
3
(0.66g/cc), Hardness 60 Shore D

Page 1/3- June12, 2017 US Rev 04

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DESCRIPTION
Machinable board designed for production of patterns, mock-ups, prototypes and masters by milling or machining by
hand. Additional applications manufacture of molds for low pressure reaction injection molding, vacuum forming
molds for lower number of pieces.

PROPERTIES
PHYSICAL PROPERTIES
Test Method Units Test Value
Color Visual brown
Density at 74 F (23 C) ASTM D 792-91 lbs/ft
3
(g/cc) 41 (0.66)
MECHANICAL PROPERTIES at 23 C
Hardness (77 F/150 F: 25 C/66 C) ASTM D 2240 Shore D1 60/50
Flexural strength ASTM D 790-95a psi (MPa) 3,618 (25)
Flexural modulus ASTM D 790-95a psi (MPa) 209,540 (1,445)
Tensile strength ASTM D 638-95 psi (MPa) 2,910 (20)
Elongation ASTM D 638-95 % 1.4
Compressive strength ASTM D 695-91 psi (MPa) 4,054 (28)
Unnotched Izod Impact (complete break) ASTM D 256-93 ft.Lbf/in (J/m) 1.21 (64.6)
Heat deflection temperature@264 psi ASTM D 648-82 F ( C) 140 (60)
Coefficient of thermal expansion (CTE) TMA 10
-6
. F
-1
( C) 34 (62)
STABILITY OF MP-1055 MODEL PLANK

Condition Weight(g) Length(mm)
Initial (2 x 4 x 4 pieces) 368.38 105.44
After 24 hours at -30 F 368.62 105.20
After 24 hours at standard lab conditions 368.38 105.44
After 6 hours at 130 F 368.33 105.63
After 24 hours at standard lab conditions 368.37 105.44
After 168 hours at 100 F/100% Relative Humidity 369.62 105.53
After 24 hours at standard lab conditions 368.93 105.43
Additional 24 hours at standard lab conditions 368.89 105.46

ASSEMBLY / FINISH
Ambient Use Adhesive System – TCC230 Epoxy Adhesive with TCC-102 or TCC-104 Hardeners
Patch Paste – P-34 Model Plank Filler with White Cream Hardener

Dense fine surface
Easy to seal and good to varnish
Low dust formation when milled
Easy machinability
Very high dimensional stability
Good compressive strength and edge stability
Good heat distortion temperature

MP-1055 MODEL PLANK

Technical Data Sheet
POLYURETHANE MODELING BOARD
Masters Patterns Prototypes
Density 41 lbs/ft
3
(0.66g/cc), Hardness 60 Shore D

Page 2/3- June12, 2017 US Rev 04

Machining Recommendations

Metric Machining Envelope English Machining Envelope
Machining Parameters

Cutter edge velocity
(Vc in ft/min (m/min))
Feed per tooth
(fz in inches (mm)/revolution)
Rough shape 328 -1640 (100 to 500) 0.006 0.028 (0.15 to 0.70)
Finish 1312 2625 (400 to 800) 0.003 0.004 (0.07 to 0.10)

n = ((12 English or 1000 metric) X Vc) / (PI X Dc) Vf = n X fz X Z
Vc: Cutter edge velocity in ft/min (m/minute) fz: Feed per tooth in inches (mm)/revolution
Dc: Cutting diameter in inches (mm) Z: Number of teeth
n: Spindle speed in revolution/minute Vf: Feed speed in inches (mm)/minute
These are possible recommendations. There may be some variance depending on cutters and CNC mill capabilities.

CUTTING SUGGESTIONS FOR TOOLING PLANKS

CUTTING HORIZONTALLY ON A PLANER MILL: Head is a 10 insert, 8 in diameter.For best results use 5
inserts.Inserts are SFE-42E-10J-C5.We have found a C2 Carbide insert does not chip as easily.RPM 2200-2400
table feed 50-55 inches per minute.Some modifications may be needed.

SAW BLADES: A carbide-tipped, positive rake saw blade with air slots should be used, if possible.We suggest
alternate top bevel ATB or triple chip grind TCG rpm, depending on the saw.We suggest 3,500 max rpm.Check
with manufacturer on saw and blade size.
12 blade, 48 teeth
16 blade, 48 teeth
18 blade, 60 teeth
When sawing, you may need to back part away from blade to relieve heat and binding, then proceed with cut.It
may be necessary to take more than one cut to achieve best finish.
Tool with 1 Tooth
0
100
200
300
400
500
600
700
800
900
1000
0
3000 6000 9000 12000 15000 18000 21000 24000 27000
Rotation Speed in RPM
Feed Speed in inches/m inute

Poor Surface Quality
Shavings Produced
Excess Dust
Tool with 1 Tooth
0
5000
10000
15000
20000
25000
0
3000 6000 9000 12000 15000 18000 21000 24000 27000
Rotation Speed in RPM
Feed Speed in mm/min ute

Poor Surface Quality
Shavings Produced
Excess Dust

MP-1055 MODEL PLANK

Technical Data Sheet
POLYURETHANE MODELING BOARD
Masters Patterns Prototypes
Density 41 lbs/ft
3
(0.66g/cc), Hardness 60 Shore D

Page 3/3- June12, 2017 US Rev 04

STORAGE CONDITIONS
Store flat in a dry place. Allow time for material to come to ambient temperature prior to bonding or machining.

HANDLING PRECAUTIONS
Normal health and safety precautions should be observed when handling these products:
Ensure good ventilation to prevent dust or chip accumulation
Wear gloves, and safety glasses.
Do not smoke when machining.

For additional information, please consult Safety Data Sheet (SDS).

DISCLAIMER
The information contained in this technical data sheet results from research and tests conducted in our laboratories under precise conditions.
Seller cannot anticipate all conditions under which seller s products, or the products of other manufacturers in combination with seller s
products, may be used. It is the responsibility of the user to determine the suitability of the SikaAxson s products, under their own conditions,
before commencing with the proposed application. In no event shall SikaAxson US be liable for any direct, indirect, punitive, incidental,
special, and/or consequential damages, to property or life, whatsoever arising out of or connected with the use or misuse of our products.

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