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STAGE 03 OF 06 — MATERIAL SELECTION

From 45 Shore A buffer pad to 60 HRC steel.

Every part we ship starts with the right material. Our working spectrum spans soft rubbers, cast polyurethanes, TPU and TPE — plus the AISI tool steels our dies are machined from. Hover any tile; quote any grade below.

Rubber (CM/IM) Polyurethane (cast) TPU (IM/3DP) TPE (IM) Steels — AISI (CNC)
ELASTOMERS · MOLDED

Rubber

CM
NR 40
Natural Rubber
40 ShA
CM
NR 60
Natural Rubber
60 ShA
CM
NR 70
Natural Rubber
70 ShA
CM
SBR 65
Styrene-Butadiene Rubber
65 ShA
CM
EPDM 60
Ethylene Propylene Diene
60 ShA
CM
EPDM 70
EPDM — weather grade
70 ShA
CM
NBR 70
Nitrile Rubber — oil resist
70 ShA
CM
CR 65
Chloroprene (Neoprene)
65 ShA
IM
LSR 30
Liquid Silicone Rubber
30 ShA
IM
LSR 50
Liquid Silicone Rubber
50 ShA
IM
LSR 70
Liquid Silicone Rubber
70 ShA
CAST · 45 ShA – 75 ShD

Polyurethane

CAST
PU 45A
Hot-cast PU — buffer pads
45 ShA
CAST
PU 60A
Hot-cast PU (TDI ester)
60 ShA
CAST
PU 75A
Hot-cast PU (TDI ester)
75 ShA
CAST
PU 85A
Hot-cast PU (TDI ester)
85 ShA
CAST
PU 90A
Hot-cast PU (TDI ester)
90 ShA
CAST
PU 95A
Hot-cast PU (MDI ether)
95 ShA
CAST
PU 55D
Hot-cast PU — semi rigid
55 ShD
CAST
PU 65D
Hot-cast PU — high load
65 ShD
CAST
PU 75D
Hot-cast PU — near rigid
75 ShD
IM
ETPU
Engineering TP Polyurethane
—
INJECTION · 75 ShA – 70 ShD

TPU

IM
TPU 75A
TPU — soft ether grade
75 ShA
IM
TPU 85A
TPU — ether
85 ShA
IM
TPU 90A
TPU — ester
90 ShA
IM
TPU 95A
TPU — ester
95 ShA
IM
TPU 55D
TPU — semi rigid
55 ShD
IM
TPU 64D
TPU — rigid
64 ShD
IM
TPU 70D
TPU — max rigidity
70 ShD
3DP
TPU 70
TP Polyurethane 70 (SLS)
70 ShA
INJECTION · 80 ShA – 75 ShD

TPE / TPV

IM
TPE 80A
TP Elastomer (SEBS)
80 ShA
IM
TPE 85A
TP Elastomer (SEBS)
85 ShA
IM
TPE 90A
TP Elastomer (SEBS)
90 ShA
IM
TPV 73A
TP Vulcanizate (PP+EPDM)
73 ShA
IM
TPE 40D
TPE — semi rigid
40 ShD
IM
TPE 60D
TPE — rigid
60 ShD
IM
TPE 75D
TPE — max rigidity
75 ShD
IM
SB
Styrene-Butadiene Copolymer
—
TOOLING · CNC MACHINED

Steel standards (AISI)

The steels behind every Croslynk die and insert — selected per cavity life, polish and corrosion requirements.

CNC
AISI 1018
Low-carbon Steel
126 HB
CNC
AISI 1045
Medium-carbon Steel
170 HB
CNC
AISI 4140
Cr-Mo Alloy Steel
28 HRC
CNC
P20
Mold Steel — pre-hardened
30 HRC
CNC
H13
Hot-work Tool Steel
48 HRC
CNC
D2
Cold-work Tool Steel
58 HRC
CNC
EN31
Bearing Steel
60 HRC
CNC
SS 304
Stainless Steel 304
—
CNC
SS 316
Stainless Steel 316
—
CNC
SS 17-4PH
Stainless 17-4 PH
44 HRC
HOW WE SELECT

Material selection is an engineering decision, not a catalogue pick.

  • Load & life first — stiffness, damping and fatigue target set the family.
  • Environment second — oil (NBR), ozone/weather (EPDM), temperature (silicone, H13).
  • Process third — volume and geometry decide molding vs. casting vs. machining.
  • Every batch verified — rheometer cure curve and durometer check before molding.

Request a material quote

MATERIAL WIZARD

Answer three questions. Get a shortlist.

Not sure whether your part wants rubber, PU, TPU or TPE? Tell the wizard about the job and it narrows the field — then our engineers confirm the exact compound with your quote.

1 · Environment
2 · Duty
3 · Volume
Result