Rust-Oleum 769/780 Damp-Proof Rust Primer

Manufacturer:

Rust-Oleum 769/780 Damp-Proof Rust Primer is a single pack rust primer for direct application on slightly moist or dry metal surfaces. Rust-Oleum 769/780 Damp-Proof Rust Primer is specially developed to be applied on hand tool prepared sound rusted steel surfaces.

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£17.13 tax excl.

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Product Description

Rust-Oleum 769/780 Damp-Proof Rust Primer is a single pack rust primer for direct application on slightly moist or dry metal surfaces. Rust-Oleum 769/780 Damp-Proof Rust Primer is specially developed to be applied on hand tool prepared sound rusted steel surfaces. Can be applied on slightly damp surfaces and is providing protection under light industrial exposure conditions, if followed by a second primer Rust-Oleum 1060/1080 High Build Metal Primer and/or Rust-Oleum 7500 Alkythane.

Features & Benefits
  • Requires minimal surface preparation
  • Penetrates deep into the rust for optimal protection
  • Expels moisture & air from the surface
  • Can be applied on slightly damp surfaces
  • Unique proven formula based on fish oil since 1921

PLEASE NOTE: Colours in this product are intended for use to improve coverage and performance of the compatible topcoats ONLY. Mixed RAL colours in this product will NOT be accurate, they simply provide a suitable base for the same RAL colour topcoat to be applied.

Surface Preparation

Remove grease, oil and all other surface contaminations by alkaline or high pressure (steam) cleaning in combination with appropriate detergents. Remove rust scale, loose mill scale, loose rust and loose coatings by scraping and wire brushing to St 2 (ISO 8501-1: 1988), light blast cleaning or sanding. Sand previous coatings, which are in good condition to roughen the surface slightly. The surface must be clean and preferably dry during application.

Application Conditions

Temperature of air, substrate and coating material between 5 and 35°C and relative humidity below 85%. The substrate temperature must be at least 3°C above dew point.

Application & Thinning

BRUSH
Dilute up to 10 vol. %; Rust-Oleum Thinner 633.
Use natural bristles, long hair brushes.

ROLLER
Dilute up to 10 vol. %; Rust-Oleum Thinner 633.
Use medium nap, polyamide (perlon 8 -12 mm) rollers. Roller application may require 2 coats to achieve recommended dry film thickness.

AIRLESS SPRAY
If required, up to 5 vol. % Rust-Oleum Thinner 641.
Pneumatic and electric airless equipment. Tip size: 0.013-0.015 inch Fluid pressure: 130 - 200 bar.

AIR-ATOMISED SPRAY
10-20 vol. %; Rust-Oleum Thinner 641.
Gravity cup and pressure cup. Tip size: 1.2 -1.8 mm. Atomising pressure: 2 - 4 bar.

Drying Times at 20°C/RH 50%
Touch dry: 4 h
Dry to handle: 8 h
Dry to recoat: After 24 hours
Fully cured: 8 days

Technical Data

Density: 1.33 kg/l
Gloss Level: Matt
Corrosion Class: C3 average protection
Solids content in volume: 50%
Heat Resistance: 120°C (dry heat)

Theoretical Consumption

14.5m² per litre (70 μm WFT, 35 μm DFT)

It is your responsibility to read the Product Data Sheets (available below) before you place an order and prior to application of the product. The content of this website is our best recommendation and is not advice. Coverage rates quoted are approximate, you agree that coverage depends on the condition of the substrate, surface absorption, texture and application method. We ALWAYS recommend a trial area is coated to ensure the product meets your requirements before use.

Technical Data

Typical Coverage (per coat)14.5m² per litre
Touch Dry4 Hours
ApplicationBrush, Roller, Spray
The figures stated above are approximate. Please ensure you refer to all datasheets for full application information.

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Customer agrees that before placing an Order, Customer has read and understood the most up to date Product Data Sheet for the Product. Where we have access to the Product Data Sheet from the manufacturer, we will either provide a copy on request, or include a link to the Product Data Sheet available on the manufacturer’s website. Customer further agrees that we have no liability for any errors or omissions contained within the Product Data Sheets. For more information, please see our Terms & Conditions of Sale.

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