HEMPEL'S GALVOSIL 15780
LIQUID：15789
HEMPEL’S ZINC METAL PIGMENT：97170/97140

Description:
HEMPEL’S GALVOSIL 15780 is a two-component, medium-zinc, solvent-borne, selfcuring inorganic zinc silicate coating. Applicable by airless spray.
Hempel's Zinc metal pigment 97170 is in full compliance with ISO 3549 and ASTM D520 type I,
Hempel's Zinc metal pigment 97140 is additionally in compliance with ASTM D520 type II.

Recommended use:
As a general purpose rust-preventing primer in paint systems for long-life protection of steel exposed to moderately to severely corrosive environment. In compliance with SSPC-Paint 20, type 1, level 2.

Service temperature:
Resistant to permanent (non-cyclic) dry temperatures as well as occasionally dry peak temperatures up to maximum: 500°C/932°F.
It is of advantage to apply a topcoat of HEMPEL'S SILICONE ALUMINIUM 56914 in case of service temperatures above: 400°C/752°F.
Resistant to cyclic dry temperatures up to 400°C/752°F.

Certificates/Approvals:
Meets the requirements laid down in ASTM A-490 Class "B" for Slip-Co-efficient and Creep Resistance.

Availability:
Part of Group Assortment. Local availability subject to confirmation.

PHYSICAL CONSTANTS:
Shade nos/Colours:19840 / Metal grey
Finish: Flat
Volume solids, %: 62 ± 1
Theoretical spreading rate: 12.4 m2/l [497.2 sq.ft./US gallon] - 50 micron/2 mils
Flash point:14 °C [57.2 °F]
Specific gravity:2.4 kg/litre [20 lbs/US gallon]
Dry to touch: 0.5 approx. hour(s) 20°C/68°F (65% RH)
Fully cured: 16 approx. hour(s) 20°C/68°F (65% RH)
VOC content:442 g/l [3.7 lbs/US gallon]

Shelf life:
6 months for the LIQUID and 3 years for HEMPEL'S ZINC METAL PIGMENT (stored in closed container) (25°C/77°F) from time of production.
Shelf life is dependent on storage temperature. Shelf life is reduced at storage temperatures above 25°C/77°F. Do not store above 40°C/104°F. Shelf life is exceeded if the liquid is gelled or if the mixed product forms gels before application.

APPLICATION DETAILS:
Version, mixed product:15780
Mixing ratio:LIQUID 15789: HEMPEL’S ZINC METAL PIGMENT 97170/97140
                  4.1 : 5.9 by weight(by volume - see REMARKS overleaf)
Application method:Airless spray / Air spray / Brush (touch up)
Thinner (max.vol.):[08700 (30%) and/or 0870M (30%) see REMARKS overleaf ]/ 08700 (50%) / 08700 (10%)
Pot life:4 hour(s) 20°C/68°F
Nozzle orifice: 0.019 - 0.023 "
Nozzle pressure:100 bar [1450 psi]
                       (Airless spray data are indicative and subject to adjustment)
Cleaning of tools:HEMPEL'S THINNER 08700
Indicated film thickness, dry:50 micron [2 mils] see REMARKS overleaf
Indicated film thickness, wet:75 micron [3 mils]
Overcoat interval, min:According to separate APPLICATION INSTRUCTIONS
Overcoat interval, max:According to separate APPLICATION INSTRUCTIONS

Safety:
Handle with care. Before and during use, observe all safety labels on packaging and paint containers,consult HEMPEL Safety Data Sheets and follow all local or national safety regulations.

SURFACE PREPARATION:
Remove oil and grease etc. thoroughly with suitable detergent. Remove salts and other contaminants by high pressure fresh water cleaning. Abrasive blasting with sharp abrasive to minimum Sa 2? (ISO 8501-1:2007) with a surface profile equivalent to Rugotest No. 3, BN10, Keane-Tator Comparator, min.3.0 G/S, or ISO Comparator rough Medium (G). In case of new steel to be exposed to no more than medium aggressive (industrial) environment and without any extraordinary demands to lifetime, a surface preparation degree of SSPC-SP6 may suffice.
See separate APPLICATION INSTRUCTIONS

SUBSEQUENT COAT:
According to specification.

REMARKS:
Weathering/service temperatures:
Note: If used as anticorrosive protection under insulation of high temperature equipment it is very important that NO moisture can penetrate during slow-down periods. This is to avoid the risk of "wet corrosion" when the temperature rises.

Induction time:
For application at high temperatures, a special thinner is available.

Application(s):
When mixing part of the content in a can the mixing ratio on volume should be made as follows: 8.0 parts of the BASE and then add HEMPEL'S ZINC METAL PIGMENT up to a total of 10.00 parts by volume.

Film thicknesses/thinning:
Film thicknesses:
If topcoated with a heavy- duty system it is recommended to apply: 50-80 micron / 2-3.2 mils dry film thickness (75-125 micron / 3-5 mils wet.)
For long-term protection without topcoat it is recommended to have a film thickness of: 75 micron/3 mils dry film thickness ( 100-125 micron/4-5 mils wet.) (Consult the separate APPLICATION INSTRUCTIONS)
High temperature service: Dry film thicknesses should not exceed: 40-50 micron/1.6-2 mils to avoid cracking, especially in cases where service conditions include sudden temperature changes. (The dry film thickness range does not take into account the correction factors for rough surfaces as listed in ISO 19840).
Thinning:
HEMPEL'S THINNER 0870M can be used to accelerate curing.
Relative humidity above 50%: 0870M (max 30%) - Curing time: 8 hour(s) 20°C/68°F.
Relative humidity below 50%: 0870M (max 30%) - Curing time: 20 hour(s) 20°C/68°F.

Overcoating intervals:
Overcoating intervals are strongly dependent on both temperature and humidity. Deviations from the standard conditions may shorten or prolong the overcoating intervals.
Full curing will be obtained after:
0°C/32°F and minimum 65% RH: 3 days
10°C/50°F and minimum 65% RH: 36 hour(s)
20°C/68°F and minimum 65% RH: 16 hour(s)
(A certain degree of curing does take place at temperatures below 0°C/32°F, but at an extremely low speed)
(Consult the separate APPLICATION INSTRUCTIONS)
The state of curing should be checked before overcoating, a resistance rating of minimum 4 by ASTM 4752 is required. MEK (Methyl Ethyl Ketone) may be substituted by Hempel Thinner 08700 for the est.

Note:
HEMPEL'S GALVOSIL 15780 For professional use only.

ISSUED BY:
HEMPEL A/S       1578019840

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