Page 139 - GoodYear Rubber Products 1-866-711-4673 HBD Thermoid Inc

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CHEMICAL RESISTANCE CHART
This chart is designed to help you select the correct hose or hoses to conduct the many types of materials
found in industry. It should be used only as a guide because the ability of a particular tube compound
to resist a material depends on many variables—temperature, concentration, pressure, velocity, duration
of exposure, aeration, stability of the fluid, etc. The special variations in elastomer types and their
compounding for specific service conditions play an important part in the service life of the hose.
WARNING: The following data has been compiled from generally available sources and should
not be relied upon without consulting and following the hose manufacturer’s specific chemical
recommendations. Neglecting to do so might result in failure of the hose to fulfill its intended
purpose, and may result in possible damage to property and serious bodily injury.
Refer to additional information and warnings on pages 2, 28-32, 137 and 148.
If you have any questions about the suitability of a hose for a particular service, contact
HBD Industries’ Customer Service Department, 800/438-2312, for a recommendation.
The most commonly used chemicals, materials, oil, solvents, etc., are listed here. Ratings are for
concentrated or saturated solutions at room temperature (70°F) unless otherwise specified. The rating code
indicates the degree or range of serviceability for each style of hose listed under the group headings.
RATING CODE:
A – Excellent. Suitable for continuous service. 1. Anhydrous Ammonia Hose Only
B – Good. Generally suitable for continuous 2. FDA Tube Required
service and for intermittent service. 3. Use Butane-Propane Hose Only
C – Fair or Conditional. NOT recommended for 4. (See HCL 37%)
continuous service, but generally suitable 5. Contact HBD Technical
for intermittent service.
D – Unsatisfactory. Not Recommended.
These ratings are to be used only as a guide.
TECHNICAL REFERENCE
N
As a guide to the user of hose in contact with oil, the oil resistance classes and corresponding
description are listed.
PHYSICAL PROPERTIES AFTER EXPOSURE TO OIL
Volume Change Tensile Strength
Maximum Retained
Class A (High oil resistance) . . . . . . . . . . . . . . . . . . . . . . . .+25% 80%
Class B (Medium-High oil resistance) . . . . . . . . . . . . . . . . .+65% 50%
Class C (Medium oil resistance) . . . . . . . . . . . . . . . . . . . .+100% 40%