ProBalsa is a high quality organic core material made from end
grain balsa wood. The end grain, micro honeycomb structure offers
exceptional shear and compressive strength. In addition ProBalsa
offers good fatigue properties, high thermal and sound insulation and
low FST (fire, smoke & toxicity) properties. ProBalsa is best suited for
dynamic structures where performance and efficiency are important.
All ProBalsa core materials are particularly easy to work using
conventional woodworking tools. It can be drilled, milled, turned
and sawn to close tolerances. ProBalsa is compatible with most
resin and manufacturing processes. It is also suitable for elevated
temperature cure prepreg systems.
The high performance sandwich core Product Characteristics
Technical Data
diabgroup.com
Mechanical properties ProBalsa
– Imperial units
All values measured at +71.6 F 1. Properties measured perpendicular to the plane
Nominal value is an average value of a mechanical property at a nominal density
1 (2)
CERTIFIED
B
Y
MARITIME
ProBalsa is type approved by:
High temperature resistance
Fast and easy to process
Good chemical resistance
Exceptional shear and compressive
strength
Property
Test Procedure
Unit PB
Standard
Compressive Strength
1
ASTM C 365 psi Nominal 1,842
Compressive Modulus
1
ASTM C 365 psi Nominal 594.655
Tensile Strength
1
ASTM C 297 psi Nominal 1,958
Shear Strength
1
ASTM C 273 psi Nominal 435
Shear Modulus
1
ASTM C 273 psi Nominal 24.076
Sheet Density ASTM C 271 lb/ft
3
Nominal 9.7
Disclaimer:
This data sheet may be subject to revision and changes due
to development and changes of the material. The data is
derived from tests and experience. If not stated as minimum
values, the data is average data and should be treated as
such. Calculations should be verified by actual tests. The
data is furnished without liability for the company and does
not constitute a warranty or representation in respect of the
material or its use. The company reserves the right to re-
lease new data sheets in replacement.
All content in this publication is protected by international
copyright laws. Copyright Diab February 2016.
Diab Group
Box 201
312 22 Laholm, Sweden
Phone: +46 (0)430 163 00
E-mail: info@se.diabgroup.com
Issued: Feb 2016 Doc No: PB Feb 2016 rev8 IMP
diabgroup.com
Technical Characteristics ProBalsa
Physical characteristics
1. Typical values 2. Thermal conductivity at +73.4 F
2 (2)
Technical Characteristics
Shrinkage and swelling of wood due to moisture changes will overshadow thermal expansion.
Characteristics
1
Unit PB StandardTest method
Thermal conductivity
2
Btu x in / (ft
2
x h x F) 0.44 ASTM C 177
Moisture content % 8-12 ASTM D 4442
Water absorption, 24 hours % 225 ASTM C 272
Water absorption, 48 hours % 310 ASTM C 272
Water absorption, saturation % 625 ASTM C 272
R-value
12 mm / 0.5 in 1.1
Based on +10 K
factor
25 mm / 1.0 in 2.3
51 mm / 2.0 in 4.5
Coefficient of linear expansion: (ASTM D-696)
Longitudinal: 2.0 x 10
-6
/ F
Radial: 8.0 x 10
-6
/ F
Tangential: 12.0 x 10
-6
/ F
Format UnitPB Standard
Plain sheets
Lengthinch 48.03
Width inch 24.02
GS sheet
Lengthinch 48.03
Width inch 24.02