PPG NovaGuard 4801

7791

PPG NovaGuard 4801 is a two-component, glass-flake reinforced novolac vinyl ester high-performance coating for new or old steel. Its excellent resistance to chemicals at high temperatures and (in)organic acids make it ideal for high temperature immersion, and can be used over the of Novaguard 4701 on concrete.

  • 2-part system (Mixing ratio by volume: base to catalyst 98:2)
  • Glass flake reinforced novolac vinylester primer
  • Overcoating interval of less than 1 hour
Colour
Size
Finish
£608.00
VAT excluded

£729.60 Tax incl.
Quantity

Description

PPG NovaGuard 4801 is a two-component, glass-flake reinforced novolac vinyl ester high-performance coating for new or old steel that boasts excellent resistance to chemicals at high temperatures and (in)organic acids, making it a suitable coating for high temperature immersion.

Novaguard 4801 can be used on top of PPG Novaguard 4701 holding primer on concrete.



Top Features & Benefits


  • High performance coating for new or old steel
  • Excellent resistance to chemicals at high temperatures
  • Excellent resistance to (in)organic acids
  • Good resistance to a wide range of solvents
  • Suitable for high temperature immersion
  • Suitable for application on concrete on top of Novaguard 4701
  • Overcoating interval of less than 1 hour
  • 50 minute pot life [at 20°C (68°F)]
  • Two-component, glass flake reinforced novolac vinylester coating

Reference Colour Size Gloss Level
346294 White 20 litres Flat



Product Data


Basic data at 20°C (68°F)

Data for Mixed Product
Mass density 1.2 kg/l (10.0 lb/US gal)
Volume solids 99%
Recommended dry film thickness 500 - 1500 µm (20.0 - 60.0 mils)
Theoretical spreading rate 1.6 m²/l for 500 µm (64 ft²/US gal for 20.0 mils)
0.5 m²/l for 1500 µm (21 ft²/US gal for 60.0 mils)
Full Cure After 4 days
Overcoating Interval 1.5 hours

Notes:

  • A film shrinkage up to 20% can be expected, due to the specific reaction mechanism and depending on conditions
  • Frequent temperature cycles may shorten the shelf life
  • Refer to tables below for information regarding spreading rate and film thickness, overcoating intervals and curing times



Preparation & Application


Recommended Substrate Conditions & Temperatures


Steel

  • Steel; blast cleaned to ISO Sa 2½ or SSPC-SP-10, blasting profile 50 – 75 µm (2.0 – 3.0 mils)

Coated concrete

  • Suitable primer must be dry and free from any contamination

Substrate temperature and application conditions


  • Substrate temperature during application and curing should be above 10°C (50°F)
  • Substrate temperature during application and curing should be at least 3°C (5°F) above dew point

 

Instructions For Use


Mixing ratio by volume: base to catalyst 98:2

  • The reaction between the base component and catalyst is highly exothermic, deviation from the recommended mixing ratio should not be undertaken.
  • Pre-mix base component with a pneumatic air mixer at moderate speeds to homogenize the container
  • Add the catalyst while stirring the base
  • Mix thoroughly before application

 

Application


  • Never add any solvent
  • Never add the catalyst without continuous stirring
  • Never add more than the recommended amount of catalyst

 

Airless spray


  • AIRLESS PUMP 45:1 or greater, fit leather or PTFE seals and remove fluid filters, 10 mm diameter (0.375 in) nylon-lined hoses, large-bore gun with 0.6 to 1.5 mm (0.024 to 0.059 in) reverse clean tip
  • Typical tip size is 0.75 – 0.85 mm (0.030 – 0.033 in) with reverse clean and 45° fan
  • The size of tip and fan pattern will vary with the nature of the work
  • Pressure to suit hose lengths and working conditions (circa 200 bar)

 

Cleaning solvent


  • THINNER 50-02



Additional Data


Spreading rate and film thickness
DFT Theoretical spreading rate
500 µm (20.0 mils) 1.6 m²/l (64 ft²/US gal)
750 µm (30.0 mils) 1.1 m²/l (43 ft²/US gal)
1500 µm (60.0 mils) 0.5 m²/l (21 ft²/US gal)

 

Overcoating interval for DFT up to 1000 µm (40.0 mils)
Overcoating with... Interval 10°C (50°F) 20°C (68°F) 30°C (86°F) 40°C (104°F)
Itself Minimum 5 hours 2.5 hours 1 hour less than 1 hour
Maximum 4 days 48 hours 36 hours 18 hours

Notes:

  • Surface should be dry and free from any contamination before recoating
  • The maximum recoating time will reduce significantly at high temperature or in strong sunlight
  • Once the maximum recoating time has been reached, adhesion values attained by an subsequent coat will reduce dramatically
  • Styrene cannot be used to reactivate the surface of this product and may impair adhesion

Curing time for DFT up to 1500 µm (60.0 mils)
Substrate temperature Dry to handle Full cure
10°C (50°F) 24 hours 5 days
20°C (68°F) 18 hours 3 days
30°C (86°F) 12 hours 48 hours
40°C (86°F) 6 hours 24 hours

Notes:

  • Adequate ventilation must be maintained during application and curing

 

Pot Life


  • 50 minutes at 20°C (68°F)

Note: The pot life will vary substantially with temperature

 



Safety Precautions


  • Since improper use and handling can be hazardous to health and cause of fire or explosion, safety precautions included with Product Data/Application Instruction and Material Safety Data Sheet must be observed during all storage, handling, use and drying periods
  • Although this is a solvent-free paint, care should be taken to avoid inhalation of spray mist, as well as contact between the wet paint and exposed skin or eyes
  • The catalyst of this product is supplied in small polythene bottles separately from the pigmented base component
  • The catalyst of this product is an organic peroxide which is a highly reactive, combustible and thermally unstable
  • It is also a powerful oxidizing agent and will react violently with other organic chemicals
  • It is thus recommended to keep in original containers, to hold within the predetermined temperature limits, to prevent contact/contamination with other materials, and to minimize the quantity at the workplace – only have enough present for the job in hand
  • The waste of this product should be treated with special care; please contact the manufacturer (PPG) for more details

 

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.

Product Details
7791

Data sheet

Manufacturer
PPG
Parts
Two
Base Type
-
Solvent
-
Mixing Ratio
98:2
Suitable Substrates
New or old steel, concrete
Key Features
Glass flake reinforced novolac vinylester coating, suitable for high temperature immersion, good resistance to a wide range of solvents
Application
Spray
Touch Dry (at 20°C)
24 hours
Dry to Handle (at 20°C)
18 hours
Dry to Recoat (at 20°C)
2.5 hours
Fully Cured (at 20°C)
3 days
Pot Life (at 20°C)
50 minutes
Coverage
1.6 m²/l for 500 µm (64 ft²/US gal for 20.0 mils). 0.5 m²/l for 1500 µm (21 ft²/US gal for 60.0 mils)
Recommended Thinner/Cleaner
PPG Thinner 50-02
Unit Contents
-
Compatible Primers
PPG NovaGuard 4701
Compatible Topcoats
Itself
Max. Application Temperature
-
Min. Application Temperature
10°C (50°F)
Density
1.2 kg/l (10.0 lb/US gal)
Solids by Volume
99%
Heat Resistance (up-to)
-
VOC
-
Shelf Life (Once Opened)
Base/Catalyst: at least 6 months when stored cool and dry
Attachments
Download


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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