Supplier
Brand
Additive type
Suomen KL-Lämpö Oy, Finland
www.kl-lampo.com/eng
Korrostop KV
Sodium molybdate
Total, France
www.total.com/en
WT Supra
Organic Acid Technology
Vecom Marine Alliance B.V., The
Netherlands
www.vecom-group.com
Cool Treat NCLT (ex Vecom
CWT Diesel QC-2)
Sodium n borate
Wilhelmsen Chemicals AS, Nor-
way
www.wilhelmsenchemicals.com
Dieselguard NB
Rocor NB liquid
Cooltreat AL
Nalcool 2000
Engine Water Treatment
9-108
Sodium n borate
Sodium n borate
Organic Acid Technology
Sodium n borate
Sodium n borate
12.2.2
Dosage of cooling water additives
Table 12-3 - Dosage and concentration of cooling water additives
dosage and concentration of cooling water additives. WinGD recommends to start the dosage
from the upper level of the given range. This is because the quantity of active corrosion inhibitors
decreases during the service life of the engine.
Tab 12-3
Dosage and concentration of cooling water additives
Brand
Dosage of 1 m
3
of system ca-
pacity
Concentration
Diaprosim RD11 (RD11M)
5 kg
1250 ppm as NO
2
Havoline XLI
50 to 100 litres
1.8 to 3.7 Brix° of active
compounds measured with
a supplier’s refractometer
Drewgard 4109
16 to 30 litres
640 to 1200 ppm as NO
2
DEWT-NC powder
Liquidewt
Maxigard
3 to 4.5 litres
8 to 12 litres
16 to 30 litres
1500 to 2250 ppm as NO
2
470 to 700 ppm as NO
2
640 to 1200 ppm as NO
2
CorrShield NT 4293
10 litres
670 to 1000 ppm as NO
2
CorrShield NT 4200
10 litres
670 to 1000 ppm as NO
2
Pekar J
20 litres
30 ppm as Mo
Q8 Corrosion Inhibitor Long-Life
50 to 100 litres
1.8 to 3.7 Brix° of active
compounds measured with
a supplier’s refractometer
X52
AA00-0000-00AAA-101D-A
Operation Manual
Cooling water additives
Winterthur Gas & Diesel Ltd.
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Issue 002 2018-11