Teamac Marine Primer Undercoat


Teamac Marine Primer Undercoat, is an interior and exterior, oil based marine undercoat. It is a high opacity undercoat with good flow characteristics for use with Teamac Marine Gloss.  It has been designed to reduce topcoat sinkage and to retain a high gloss finish.

  • Primes and prepares - easy to use
  • Protects and enhances – anti-corrosive & improves topcoat finish
  • Good base for colour change
  • Perfect for wood, GRP, steel and cast iron

Coverage Calculator

Pick a Colour
  • Current colour: Buff
Close colour picker
  • White
  • Black
  • Light Grey
  • Buff
  • Primrose
  • Red
£19.27(ex. VAT)
£23.13 (inc. VAT)
Please choose your colour
In Stock and Available for Delivery (See Delivery Options Below)


Teamac Marine Primer Undercoat, is an interior and exterior, oil based marine undercoat. It is a high opacity undercoat with good flow characteristics for use with Teamac Marine Gloss, either as a foundation coating or when a colour change is desired. It has been designed to reduce topcoat sinkage and to retain a high gloss finish.

Teamac Marine Primer Undercoat primes and prepares Wood, GRP, Iron and Steel. Suitable for Narrowboats, Cruisers, Barges, yachts and marine structures. It can be applied to suitably prepared Steel and Cast Iron. Marine Undercoat should be used as a system with Teamac Marine Gloss to retain a long lasting, high gloss finish.

Click To Jump To Section:

Features & Benefits

  • Primes & Prepares - Easy to Use
  • Protects & Enhances – Anti Corrosive & Improves Topcoat Finish
  • Good Base for Colour Change
  • Perfect For Wood, GRP, Steel & Cast Iron
  • Click to jump down to Technical Data

Product Specification

Technical Data
Volume Solids 44 to 53%
VOC Content Max 437 g/litre
SG 1.35 to 1.53 @ 20°C
Viscostity 4.5 Poise @ 25°C
Flash Point Above 32°C (closed cup)

Film Thickness Range And Coverage

Product Data
  Dry Film Thickness Wet Film Thickness Theoretical Coverage
Maximum 75 μm 35 to 40 μm 13 m2/litre @ 40 microns D.F.T.

The practical spreading rate may be lower as this depends on factors such as the porosity and roughness of the surface to be painted and material losses during application.

Drying Times

Drying Times At 20°C/RH 50%
Touch Dry: 2 Hours
Dry To Handle: 12 Hours
Dry To Recoat: 12 hours or overnight
Fully Cured: 3 - 5 Days

Low temperature and high humidity will adversely affect application, drying and performance of any coating.

Surface Preparation

  • All surfaces should be clean, dry, sound and free from contaminants.
  • Wood should be sanded prior to coating to ensure an adequate "key" is produced.
  • Apply direct to abraded GRP. Existing painted surfaces should be cleaned, degreased and sanded to ensure an adequate "key" is produced.
  • Remove all loose, flaking material and treat bare areas as new substrate then prepare accordingly.

Preceeding Coat

  • Direct to wood, metal and GRP.

Subsequent Coat


  • Mix well before use.

Application Conditions

  • As dictated by normal good painting practice.
  • Care must be taken during application that the temperature is above the dew point to avoid any contamination.
  • In confined spaces, provide adequate ventilation during application and drying.

Application Methods

Method Airless Spray Conventional Spray Brush Roller
  Yes No Yes Yes

  • Thinner (Max vol): Thinners 14 (5%)
  • Nozzle Size: 0.011" - 0.013"
  • Nozzle Pressure: 1800 to 2000 psi
  • Cleaning Solvent: Thinners 14

Health & Safety

See safety data sheet - White - SDS 10607, All other colours - SDS 10590 in attachments section above.

Click to go back to the top of the page

Product Details

Data sheet

For Use By
Consumer Use
Interior / Exterior Use
Interior & Exterior use
Water / Solvent Based
For Use On
Application Method
Airless Spray
Standard / Ready Mixed
Single, Two or Three Pack
Single, Two or Three Pack
Pack Size
1L, 2.5L, 5L
Dry to Handle (at 20°C)
12 Hours
Dry to Recoat (at 20°C)
12 hours or overnight
Fully Cured (at 20°C)
3 - 5 Days
13m² per litre
Recommended Thinner/Cleaner
Teamac Thinner 14
Solids by Volume
44 to 53%
Max 437 g/litre
Touch Dry
2 Hours
1 litre, 2.5 litre, 5 litre
Recommended Dry Film Thickness
75 μm
Recommended Wet Film Thickness
35 to 40 μm
UN Number
Base Type
Exterior / Interior Use
Exterior & Interior Use
Suitable For Use On
Suitable For Use On
Suitable For Use On
Suitable For Use On
Wood (Marine)
Suitable For Use On
Iron (Marine)
Suitable For Use On
Suitable For Use On
GRP (Marine)
Suitable For Use On
Steel (Marine)
Application Method
Application Method
Application Method
Application Method
Airless Spray
Marine Applications
Product Type
Product Range
Fastest Delivery
Next Working Day
Colour Family
Colour Family
Colour Family
Colour Family
Colour Family
Colour Family

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.

questions Steve Tibbetts on 2023-01-11 17:59:10

Hello, I am planning on applying (by roller) your marine primer undercoat soon to my GRP / Paint boat. I will have abraded cleaned etc the surface. I am likely to be applying the primer undercoat at around 9 degree C; with a plan to overcoat with two coats of marine gloss up to 5 weeks later at temperatures over 12 degrees C. Boat is outdoors. Do you see any flaws with this plan? Regards Steve, North Wales

Answer from Rawlins’ Technical Team: 

This product is dry to recoat or over paint in 12 hours or overnight at 20°C and fully cured in 3 to 5 days.

With the boat being left outdoors it would be better to apply the marine undercoat 12 to 24 hours prior to application of the Teamac Marine Gloss rather than leaving it exposed to weather.

Also if the marine undercoat is full cured it will require sanding prior to application of a paint.

questions philip on 2021-08-22 12:21:01

I am going to repaint my narrowboat. I have some rust spots which I am going to use Teamac Rust Converter. Can I just use Teamac Marine Undercoat or should I use Teamac red oxide first then undercoat then top coats? Many thanks

Answer from Rawlins’ Technical Team: 

Assuming the painting is to be done above the waterline we'd recommend applying Teamac Red Oxide over any bare metal areas or areas treated with Rust Converter. The whole surface (above the waterline) should then be undercoated with Teamac Marine Undercoat and finally 2 coats of Teamac Marine Gloss should be applied.

questions lee on 2018-01-29 12:33:25

Is Teamac Marine Gloss OK for salt water & is the Teamac Marine Undercoat fine under the water line?

Answer from Rawlins’ Technical Team: 

Teamac Marine Gloss and Undercoat have good resistance to salt water but should not be used for constant immersion below the waterline. They are suitable for boats that are generally berthed on land. Below the waterline, for boats in the water most of the time our recommendation is Teamac Metaclor Underwater CR Primer and Teamac Chlorvar Chlorinated Rubber Paint, both of which have excellent water resistance.

Question about the product

* Required fields


Teamac Marine Primer Undercoat is only available with the shipping and delivery timescales listed below - please do not contact our Customer Support Team with enquiries about alternative or earlier shipping and delivery times.

Saturdays and Sundays, as well as Bank Holidays, are not classed as working days.

Orders placed after the cut-off for this product will not be processed for earliest dispatch until 9am the next working day.

All delivery costs below are excluding VAT

Total area²
Or enter length and width dimensions:

*All estimates are based on theoretical consumption rates for a single coat and do not take into account any substrate deviations or wastage

You might also like

Teamac Thinner 14

A specially formulated blend of solvents designed to mix with its compatible Teamac or Coo-Var coating to create an optimal consistancy for application. Suitable for use with Brush, Roller or Spray. Teamac Thinner 14 can also be used for the cleaning of some surfaces prior to application of the coating. Also suitable for the cleaning of...

Price £10.61 (ex. VAT)
In Stock and Available for Delivery

Teamac Marine Gloss

Teamac Marine Gloss is a high quality, modified long oil alkyd marine coating. It has excellent gloss and opacity. High gloss Excellent opacity and adhesion Touch dry in as little as 4 hours (at 20°C) Full hardness in 5 - 7 days Suitable for all general marine areas, bridge fonts, deck work, masts, superstructures etc Available in...

Price £10.61 (ex. VAT)
In Stock and Available for Delivery

General Painting Application Kit

General Painting Application Kit from Rawlins Paints provides the basics for any painting project. Whether it is a one off job, or you just want to make sure the right application tools get to site. Provides an economical way of making sure you will have what you need Ideal for interior and exterior paint projects Click to jump down to...

Price £8.02 (ex. VAT)
In Stock and Available for Delivery