PPG SIGMAGLIDE 790 Two-component Silicone Tie Coat

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Introduction

A two-component silicone tie coat for biocide-free foul-release antifouling systems.

Key properties

• Used in a specific coating system to reinforce the compatibility between the biocide-free foul-release antifouling and the preceding anti-corrosion coating, ensuring intercoat adhesion.
• Suitable for newbuilding and ship repair.

Colour and gloss

• Medium grey
• Semi-gloss

Basic data 20 °C (68 °F)

Parameters after mixing

Maximum 184.0 g/L (approx. 1.5 lb/gal) (theoretical calculated value).

Chinese national standard GB 38469-2019 (tested value) 213.0 g/L (approx. 1.8 lb/gal)

Curing agent: at least 36 months, stored in a dry and cool environment.

Notes

• See supplementary parameters — recoat interval table.

Recommended substrate condition and temperature

Substrate condition

• The previous old coating (specific epoxy) surface shall be dry and clean, free from any contaminants, and within the specified maximum overcoating interval.

Substrate temperature and application conditions

• During application and curing, the substrate temperature should be above 5 °C (41 °F)
• During application and curing, the substrate temperature must be at least 3 °C (5 °F) above the dew point.
• During application and curing, the relative humidity should be maintained between 40% and 85%

Coating system specification

• To ensure that the non-toxic foul-release antifouling system achieves the ideal performance quality, when applying each coat of the non-toxic foul-release antifouling, strictly follow the minimum specified dry film thickness and the special application process guidelines recommended by PPG Protective & Marine Coatings.
• Consult PPG Protective & Marine Coatings for the specific application procedure, which is consolidated and optimised on the basis of methods accumulated and proven in practical use worldwide, to ensure the desired application process and coating quality.

Instructions for use

Mixing ratio by volume: base : curing agent 95:5

• Open the container only immediately before use.
• Stir the base thoroughly for 5 minutes before mixing.
• After adding the curing agent, continue stirring thoroughly for at least 5 minutes.
• No thinning required.
• To prevent cross-contamination, all application equipment must be thoroughly cleaned before using this product and before resuming normal application of other materials.
• Take masking measures to ensure the overspray of the biocide-free foul-release antifouling does not contaminate adjacent coated surfaces.

Notes

• See supplementary parameters — pot life after mixing.

Airless spray (single-feed pump)

Spray fan angle

35–60°, depending on the nozzle tip size.

Brush/roller

• For local small-area application only (repair and touch-up).

Cleaning solvent

• Thinner 90-53 or Thinner 90-83
• Used cleaning solvent shall never contaminate other coatings or surfaces to be coated.

Supplementary parameters

Recoat interval for a coating with SIGMASHIELD 680 as the preceding primer at up to 150 µm (6.0 mil) dry film thickness

Notes

• Before recoating, ensure the surface is clean, dry and free of all contaminants.

Recoat interval schedule for the biocide-free foul-release antifouling tie coat 790 at up to 150 µm (6.0 mil) dry film thickness

Notes

• Before recoating, ensure the surface is clean, dry and free of all contaminants.

Pot life (at normal application viscosity)

Safety Precautions

• Read all labels and the safety data sheet carefully before use
• This is a solvent-borne coating. Avoid inhaling spray and solvent vapours, and avoid contact of uncured paint with skin and eyes

Worldwide applicability

Although PPG Protective & Marine Coatings is committed to providing completely consistent products to users worldwide, from time to time it may be necessary to make minor adjustments to specific products to comply with local/national regulations or environmental requirements. In the following cases, use the corresponding alternative version of the product data sheet instead.

Reference information

• Information sheet | Explanation of product data sheets

Quality guarantee

PPG warrants (1) that it has good title to the product, (2) that the product quality conforms to the relevant technical quality specifications in force at the date of manufacture of the product, and (3) that the supplied product is free of lawful claims by third parties for infringement of US patent rights. The above warranties are limited to those given by PPG and other express or implied warranties required by applicable laws and regulations for transactions and commercial practice; any abuse contrary to the stated conditions, and any other warranty for special purposes or uses, are excluded, and PPG shall be free from liability. To claim under this warranty, the buyer must notify PPG in writing within five (5) days of discovering the quality defect, and the date must be within the product's valid storage period or within one (1) year from delivery of the product to the buyer. If the buyer fails to notify PPG of the defect as required above, this will prejudice the buyer's right to obtain compensation under this warranty from PPG!

Limitation of liability

In all cases, PPG shall not be liable for any indirect, special, incidental or consequential loss of any kind arising from or in connection with the use of this product (whether based on negligence, strict liability or tort). The information in this product data sheet is based on laboratory tests we believe to be reliable, and is provided for guidance only. PPG may revise this information at any time as experience accumulates and product development progresses. All recommendations and advice concerning the use of this product, whether in technical documents, in response to an enquiry or otherwise, are given to the best of our knowledge and are believed to be reliable. Our products and related information are provided for industrial users possessing the necessary knowledge and practical skills, and it is the end user's responsibility to determine whether the product is suitable for the specific use. The buyer, having performed such evaluation, proceeds entirely at its own risk. The quality and condition of the substrate on site, and the many other factors affecting product use and application, are beyond PPG's control.

Therefore, PPG accepts no liability for any loss, injury or damage arising from the use of the information in this product data sheet (unless otherwise provided in a written agreement). Different application environments, changes to the application process or extrapolation of the reference data may result in failure to achieve the expected coating quality. This product data sheet supersedes all previous versions. The buyer is responsible for confirming that the data sheet in hand is the latest version before using the product. The latest version is published on the official website of PPG Protective & Marine Coatings: www.ppgpmc.com. In case of discrepancy between the Chinese version and the original English version of the product data sheet, the English original shall prevail.

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