Page 190 - DME Workshop Equipment Catalogue 2023 EN

A
SURF
WORKSHOP EQUIPMENT - SURFACE FINISHING EQUIPMENT
CE FINISHING EQUIPMENT
MOULD FINISH COMPARISON KIT
MOULD FINISH COMPARISON KIT MFK 1200

Expanded version - 12 samples finished to SPI standards
• Eliminates errors or guesswork in achieving desired or specified fin-
ishes�
• Saves time by eliminating over-polishing�
• Provides a visual and numerical standard for specifying mold/part
finishes�

REF
MFK1200

Roughness average Roughness average
Finish Type Description Comments
Micro-inches Micron
A1 Grade 3 diamond buff 0-1 0-0,025
• For mirror or optical finishes
• Most time consuming
A2 Grade 6 diamond buff 1-2 0,025-0,05
• Steel grade important to results
• (Steel DME 6 and 7 recommended)
A3 Grade 15 diamond buff 2-3 0,05-0,076

B1 600 grit paper 2-3 0,05-0,076
• Removes all tool and machining
marks
B2 400 grit paper 4-5 0,10-0,127 • Provides good mould release
• Light reflecting finish on molded
part, some sheen
B3 320 grit paper 9-10 0,23-0,25

C1 600 stone 10-12 0,25-0,30
• Removes all tool and machining
marks
C2 400 stone 25-28 0,64-0,71 • Provides good mold release
• Mute finish on molded part, no
sheen
C3 320 stone 38-42 0,97-1,07

Dry blast glass bead 11, 200 distance
D1 10-12 0,25-0,30 • For decorative finishes
at 0,7Mpa; 5 secs • Often used for diecast and thermo-
set tooling
Dry blast 240 oxyde, 125 mm distance
D2 26-32 0,66-0,81 • Helps hide shrink marks and other
at 0,7 Mpa; 5 secs
imperfections
Dry blast 24 oxyde • Dull, non-reflecting finish on mold-
D3 190-230 4,83-5,84 ed or cast part
150 mm distance at 0,7 Mpa; 5 secs

CAD reference point

188 store.dme.net