Introduction

Tank Cleaning Chemicals for tanks coated with PPG PMC - Marine tank coating systems.

The following list provides information on the suitability of various tank cleaning chemicals. 
The results are based on tests carried out at the PPG PMC Laboratories.

The testing regime:

Maximum temperature	as specified in table
Concentration	as specified in table and given as a percentage (%)
Duration	maximum 24 hours

The information contained in the following tables is specific to the above testing conditions.
Please consult PPG PMC if the conditions of use are outside those tested. 

Resistance information

+ =  suitable for normal cleaning procedure  -  =  unsuitable  NT = not tested  d = exposure may lead to light coating discolouration  D =  exposure may lead to heavy coating discolouration

 NB When stated at 20 °C, use at ambient temperatures up to 40°C is permitted. 

Whilst the tank cleaning chemicals contained in this list have been tested, PPG PMC does not advise on specific tank cleaning procedures or regimes, only on the suitability of the tank cleaning products for use with the below mentioned coating systems. For detailed advice on this subject we recommend contacting one of the specialist companies mentioned in this approved list. However, all tank cleaning chemicals should be used in accordance with the manufacturers’ recommendations.

This tank cleaning chemicals list is only valid for the intact tankcoating systems as detailed in the respective system sheets mentioned below.

PPG PMC Tank Coating System	System Sheet Number	Specification number
Sigma PhenGuard	3322 and 3329	1
Sigma NovaGuard	3328	1
SigmaGuard 720 (SigmaGuard EHB)	3320	1
SigmaGuard 750 (Sigma SilGuard MC)	3323	1

ASHLAND CHEMICALS (Drew Ameroid)

Tank Cleaning Chemical	Temp  °C	Maximum Concentration	Sigma PhenGuard	Sigma NovaGuard	SigmaGuard 720(SigmaGuard EHB)	SigmaGuard 750(Sigma SilGuard MC)
Edge Heavy Duty Cleaner	75	10	+	+	+	+D
TC #4 Tankcleaner	75	100	+	+	+	+D
Oil and Grease Remover	20	100	+	+	+	+D

CHEMTEC

Tank Cleaning Chemical	Temp  °C	Maximum Concentration	Sigma PhenGuard	Sigma NovaGuard	SigmaGuard 720(SigmaGuard EHB)	SigmaGuard 750(Sigma SilGuard MC)
Chemtec CTR	60	10	+	+	+	+
Chemtec CTR	20	100	+	+	+	+
Chemtec KT-Solve	60	5	+	+	+	-
Chemtec KT-Plus	80	5	+	+	+	NT

HENKEL / CP MANUFACTURING

Tank Cleaning Chemical	Temp °C	Maximum Concentration	Sigma PhenGuard	Sigma NovaGuard	SigmaGuard 720(SigmaGuard EHB)	SigmaGuard 750(Sigma SilGuard MC)
Henkel P3-Grato 14	80	10	+	+	+d	+D
Henkel P3-Grato 50	90	5	+	+	+	+D
Henkel P3-Grato 60	90	10	+	+	+	+D
Henkel P3-Grato 80	90	20	+	+	+	+D
Henkel P3-A	50	1	+	+	+	+D
Henkel P3-NA	90	10	+	+	+	-
Henkel P3-FD	100	15	+	+	+	-
Henkel Grato Sol Plus +	20	100	+	+	+	-
Henkel Grato Sol Plus +	60	5	+	+	+	-

GYRO

Tank Cleaning Chemical	Temp  °C	Maximum Concentration	Sigma PhenGuard	Sigma NovaGuard	SigmaGuard 720(SigmaGuard EHB)	SigmaGuard 750(Sigma SilGuard MC)
Voyage Clean	80	0.4	+	+	+	-
Citroslove Degreaser	80	20	+d	+d	+d	-
Bunker “C“ Solvent	25	100	+	+	+	+
3025	80	25	+	+	+	+d
Hydro Carbon Cleaner	25	25	+	+	+	+d
Pier & Deck Cleaner	25	100	+	+	+	-
Exhaust Gas Cleaner	25	8	+	+	+	+
AVO Liquid Super	80	2	+d	+d	-	+d

MARINECARE

Tank Cleaning Chemical	Temp  °C	Maximum Concentration	Sigma PhenGuard	Sigma NovaGuard	SigmaGuard 720(SigmaGuard EHB)	SigmaGuard 750(Sigma SilGuard MC)
Careclean Alkaline	90	10	+d	+d	-	-
Careclean Alkaline Extra	90	10	+d	-	-	-
Careclean Neutral HCF	60	15	+	+	+	+D
Careclean Hydrocarbon Free	5	75	+	+	+	-
Careclean HD	80	5	+	+	+	+d
Careclean HD Split	50	20	NT	NT	NT	+d
Careclean Voyage	50	5	+d	+d	+d	-
Careclean Coal Tar	50	10	+	+	+	+D
Careclean Buffer	45	10	+	+	+	-
Careclean Buffer	80	100	+	+	+	-
Careclean Air Fresch	20	1	+	+	+	+d
Careclean GP	20	100	+	+	+	-
Careclean GP	60	2	+	+	+	-
Careclean Degreaser GP	10	60	+	+	+	+D
Careclean Aquawash	20	20	+	+	+	-
Careclean Eco	60	0.5	+	+	+d	-
Caretank Eco	60	0.5	+	+	+d	-
Careclean Rust	80	0.5	+	+	+	-
Careclean Energy Wash	40	2	+	+	+	+D
Careclean Energy Wash	80	2	+	+	+	+D
Careclean Multicleaner	80	3	+	+	+	-

ONDEO Nalco

Tank Cleaning Chemical	Temp °C	Maximum Concentration	Sigma PhenGuard	Sigma NovaGuard	SigmaGuard 720(SigmaGuard EHB)	SigmaGuard 750(Sigma SilGuard MC)
Nalfleet “Seashield” HDC 79104	70	0.4	+	+	+	-
Nalfleet “Seashield” HDC 79105	60	2.5	+	+	+	-
Nalfleet “Seashield” HDC 79110	60	0.5	+	+	+	-

TECO MARITIME ASA

Tank Cleaning Chemical	Temp °C	Maximum Concentration	Sigma PhenGuard	Sigma NovaGuard	SigmaGuard 720(SigmaGuard EHB)	SigmaGuard 750(Sigma SilGuard MC)
Marclean HD	70	5	+d	+	+	-
Marclean STD	70	5	+	+	+	-
Marclean SC	60	2	+d	+d	+d	-
Marclean SC 147	65	2	+	+	+	-
Marisol HD	60	20	+	+	+	-

UNISCAN / UNISERVER

Tank Cleaning Chemical	Temp °C	Maximum Concentration	Sigma PhenGuard	Sigma NovaGuard	SigmaGuard 720(SigmaGuard EHB)	SigmaGuard 750(Sigma SilGuard MC)
Uniclean Tank	80	10	+	+	+	+D
Paratrooper	80	15	+	+	+	-
Tankcleaning Seperating	80	10	+	+	+	+
Bufferclean 5.5	60	5	+	+	+	+
Uniclean HD	80	10	+	+	+	+
Seaclean	80	10	+D	-	-	+D
Alkaclean	85	10	+	+	+	-
Waterbased Neural HCF	80	10	+	+	+	+
Coal Tar Remover	50	10	+	-	-	NT
Ecoclean	80	4	+	+	-	-
Uniclean Break	20	100	+	+	+	+
Ecodis	20	10	+	+	+	+
Coldwash	20	100	+	+	+	+D
Alkaclean Safety	20	5	+	+	+	+D
Genepol	20	5	+	+	+	+
Rust Remover	40	100	+	-	-	-
Uniclean Drastic	60	2	+	+	+	+d
Uniservice Dyeout	60	2	+	+	+	-

UNITOR

Tank Cleaning Chemical	Temp ° C	Maximum Concentration	Sigma PhenGuard	Sigma NovaGuard	SigmaGuard 720(SigmaGuard EHB)	SigmaGuard 750(Sigma SilGuard MC)
Seaclean	80	30	+d	+d	+D	+D
Coldwash HD	60	30	+d	+	+	+D
Cleanbreak	80	30	+	+	+	+D
Alkeen Liquid	80	20	+	+D	-	-
Alkeen Safety Liquid	80	5	+	+	+	+D
Enviroclean	60	0.7	+	+	+	+D
Tankleen	80	30	+d	+d	+D	+D
H.P. Wash	20	20	+	+	+	+D
Aquabreak PX	20	5	+	+	+	+D
Metal Brite HD	20	5	+	+	+	-

VECOM

Tank Cleaning Chemical	Temp °C	Maximum Concentration	Sigma PhenGuard	Sigma NovaGuard	SigmaGuard 720(SigmaGuard EHB)	SigmaGuard 750 (Sigma SilGuard MC)
Bufferclean	75	100	+	+	+	-
Coal Tar Cleaner	50	10	+	+	+	+D
Multiclean	20	20	+	+	+	-
Tankclean at Sea	50	5	+d	+d	+d	+d
Veclean Tank	50	20	+	+	+	+D
Waterbased Alkaline HD	95	10	+	+	-	-
Waterbased Neutral HCF	60	15	+	+	+	+D
Tankclean HCF	5	75	+	+	+	+
Tankclean Seperating	5	75	+	+	+	+
Degreaser HF	10	90	+	+	+	+D
Degreaser GP	10	60	+	+	+	+D

This list is based on laboratory tests carried out on samples supplied by the various companies. The information contained herein is given in good faith and PPG PMC cannot be held responsible for the consequences of changes to chemical composition or pattern of use. This list supersedes all earlier issues and is subject to change without notice.

Caustic Soda, Potassium Soda

Tank Cleaning Chemical	Temp °C	Maximum Concentration	Sigma PhenGuard	Sigma NovaGuard	SigmaGuard 720(SigmaGuard EHB)	SigmaGuard 750(Sigma SilGuard MC)
Caustic Soda	60	5	+	+	+d	-
Potassium Soda	60	5	+	+	+d	-

Preparation of the cleaning solution:In order to avoid unnecessary damage to the tank coating the following procedure for preparation of Caustic Soda and Potassium Soda solutions is highly recommended.

When preparing a cleaning solution with concentrated solutions of Caustic or Potassium Soda, first pump the required quantity of sea water into the slop tank. Add the concentrated Caustic Soda or Potassium Soda solution to the (sea) water to give the required concentration (maximum concentration is 5%). Heat the solution under circulation to the required temperature (maximum 60ºC) for cleaning. The maximum time that the solution is allowed in the tank at 60ºC is 24 hours.

When preparing a cleaning solution using Caustic or Potassium Soda pellets, first pump the required quantity of sea water into the slop tank. Add the required quantity of pellets of Caustic Soda or Potassium Soda to the (sea) water in the tank (maximum concentration is 5%). After the pellets have dissolved, the solution can be heated up under circulation to the required temperature (maximum 60ºC). The maximum time that the solution is allowed in the tank at maximum 60ºC is 24 hours.

It is highly recommended to prepare this solution in this way in order to avoid unnecessary damage to the tank coating through uncontrolled temperature and concentration fluctuations and to confine the preparation of these cleaning solutions to the slop tanks to avoid possible damage to the cargo tanks. 

Notes:
- The coating should be resistant to this solution at maximum 60ºC
- After cleaning the solution should be transported to the slop tank and the tank  directly and thoroughly washed with fresh water.

Butyl Cellosolve

Tank Cleaning Chemical	Temp °C	Maximum Concentration	Sigma PhenGuard	Sigma NovaGuard	SigmaGuard 720(S'Guard EHB)	SigmaGuard 750(Sigma SilGuard MC)
Butyl Cellosolve	60	10	+	-	-	+
Butyl Cellosolve	60	20	+	-	-	+
Butyl Cellosolve	60	50	+	-	-	+

A solution of 10%, 20% or 50% Butyl Cellosolve (Ethylene Glycol Mono Butyl Ether) in fresh water can be used as a cleaning agent for cargo tanks with Sigma PhenGuard or SigmaGuard 750 that have carried vegetable oils.

The maximum time that the solution is allowed in a tank at 60ºC coated with Sigma Phenguard is 4 hours. This should only be used when absolutely necessary.

The maximum time that the solution is allowed in a tank at 60ºC coated with SigmaGuard 750 is 24 hours.