Materials overview

Materials overview Bruce

There are four categories of wave solder pallet materials. When creating a pallet, you may specify a category or a specific material. If you specify a category, the manufacturer will select a suitable material from that category.

A flux-resistant material is recommended for use when the solder flux is corrosive, containing halides or dicarboxylic acids.

A high-temperature material is recommended for use when the solder bath temperature exceeds 265°C and the bottom side pre-heat temperature exceeds 140°C.

Category

Economy

Antistatic

Optical

Flux-resistant

Material

Röchling
Durostone®
CHP760

VonRoll
CDM ESD
68630

Haysite
H261

Röchling
Durostone®
CAS761

VonRoll
Durapol
68910

Röchling
Durostone®
CAG762

Röchling
Durostone®
CFR767

VonRoll
CDM ESD
68940

Anti-static

 

Yes

Yes

Yes

Yes

Yes

Yes

Yes

IR-reflective

 

 

 

 

 

Yes

 

Yes

Flux-resistant

 

 

 

 

 

 

Yes

Yes

High-temperature

 

Yes

 

 

 

 

Yes

Yes

Short-run

 

Yes

 

 

 

 

 

 

Color

Blue

Black

Black

Black

Black

Grey

Red

Grey

Density (g/cm³)

1.9

1.9

1.83

1.9

1.9

1.9

1.8

1.9

Flex strength 23° (MPa)

360

400

187

360

350

360

380

350

Flex strength 150° (MPa)

180

220

42

180

 

180

260

200

Flex strength 185° (MPa)

 

80

 

 

80

 

150

 

Mod. elasticity 23° (MPa)

18 000

20 000

10 500

18 000

18 000

18 000

18 000

18 000

Mod. elasticity 150° (MPa)

9 000

14 000

4 000

9 000

 

9 000

14 000

12 000

Mod. elasticity 185° (MPa)

 

7 800

 

 

6 000

 

10 000

 

Water absorption (%)

<0.20

<0.15

0.16

<0.20

0.15

<0.20

<0.20

<0.10

Coef linear expan. (10-6/°K)

13

 

11.5

11

10.1

11

11

10.1

Thermal cond. (W/m°K)

0.25

 

0.425

0.25

0.3

0.25

0.23

0.3

Std operating temp (°C)

260

300

300

260

260

260

300

300

Max operating temp (°C)

300

 

 

300

350

300

380

350

Surface resistivity (ohms)

 

105-109

105-109

105-109

105-109

105-109

105-109

105-109