STARCHEM
StarBright™ 440
Semi-Synthetic Machining and Grinding Fluid Concentrate
GENERAL DESCRIPTION
StarBright 440 is a semi-synthetic machining and grinding fluid that has been formulated to
provide excellent corrosion inhibition, lubrication, cleaning and cooling properties in light to
moderate duty metalworking of ferrous metals and most non-ferrous metals.
APPLICATION
StarBright 440 is recommended for a wide variety of metalworking operations including
applications such as milling, drilling, cut tapping, reaming, boring and surface grinding.
StarBright 440 is compatible with a wide range of materials including mild steels, stainless
steels, hardened steels and most aluminum alloys. StarBright 440 is not recommended for use
on magnesium or alloyed magnesium.
StarBright 440 can be used in stand-alone machines and central systems.
ADVANTAGES
 Physical and chemical lubricant agents provide excellent machining and grinding ability
 Superior microbial control for long sump life
 Oily residue keeps machine tools and work-piece materials free of corrosion and
staining
 Stable in a variety of water conditions
PHYSICAL PROPERTIES
Form
Boiling Point
Clear Liquid
212oF
Specific Gravity (H2O=1)
1.02
pH (concentrate)
9.5
Flash Point (COC)
NA
Typical Operating pH
8.9
Solubility in Water
100% Miscible
Refractometer Factor
2.1
AVAILABILITY
StarBright 440 is available in 5-gallon pails, 55-gallon drums, and in bulk.
STARCHEM
StarBright 440
RECOMMENDED STARTING DILUTIONS
Grinding
5% - 10%
Machining
5% - 10%
MIXING INSTRUCTIONS
Always add StarBright 440 concentrate to water. Mix concentration can be determined using a
refractometer.
Concentration
Ratio
Refractometer
Reading
4%
1:25
StarBright 451 CONCENTRATION
5%
6%
7%
8%
1:20
1:17
1:14
1:13
9%
1:11
10%
1:10
1.9
2.4
4.4
4.9
2.9
3.4
3.9
Using premixed concentrate as makeup will improve performance and reduce usage. The
specific makeup concentration selected for your situation should balance the water
evaporation rate with the coolant carry-off rate. Adding makeup concentrate at 30-50% of the
desired working concentration will generally maintain the proper concentration in use. The use
of deionized or mineral-free water will also improve performance, prolong sump life, and
reduce concentrate usage.
HEALTH & SAFETY
The most recent MSDS is available from either STARCHEM or your authorized STARCHEM
Distributor.
NOTES
 Consult STARCHEM before using this product on any metals or applications not
specifically recommended
 Do not use any metalworking fluid additives except as recommended by STARCHEM
 The general description, recommended uses, application data and statements in the
product literature are guidelines. Because this product may be used for a variety of
applications over which the manufacturer has no control, the manufacturer assumes no
liability for incidental, consequential, or direct damages of any kind, regardless of
causes, including negligence.
CIMCOOL® FLUID TECHNOLOGY
3000 Disney Street
Cincinnati, OH 45209
Tel (513) 458-8199 Fax (513) 458-8179
PC B01808
4/4/14