How do I select the right coating for my modular or portable building?

Selecting the right coating for your modular or portable building involves various factors that are primarily dependent on your specific requirements, environmental conditions, and the intended use of the structure.

It’s critical to consider factors such as durability, flexibility, VOC content, drying time, and colour retention.

All can be effectively delivered by a water-based primer and finish system.


However, to guide you further, you need to understand the five challenges affecting the coatings you choose for modular and portable buildings:


  1. Durability: Coatings for modular and portable buildings must be durable to withstand frequent transportation and assembly. Water-based coatings, as mentioned earlier, offer excellent adhesion and a tough foundation for finish coats, providing long-term protection against various elements.
  2. Flexibility: Given the need for transportation and movement of these buildings, the coating used should be flexible enough to accommodate any shifts without cracking. Water-based paints typically have excellent flexibility.
  3. Environmental Impact: As part of a global push towards sustainable and environmentally friendly practices, choosing a coating with a lower environmental impact is essential. Water-based paints have lower VOCs, thereby reducing the harm to the environment and the health risks to the applicators.
  4. Aesthetic Requirements: Maintaining the aesthetic appeal of modular and portable buildings is essential, especially for commercial use. Opt for a coating like water-based paints, which have improved colour retention, to ensure the structure looks better for longer.
  5. Health and Safety Regulations: Complying with health and safety standards such as the Control of Substances Hazardous to Health (COSHH) regulations is crucial. Low-odour, water-based options can help reduce the risk of hazardous substance exposure, making them a safer choice for indoor use or in areas with limited ventilation.


It’s important to remember that every situation might require a different approach, so while water-based primers and finishes offer numerous advantages, your choice should depend on your specific needs and circumstances. As always, consultation with a paint or coating professional can ensure that you select the best coating for your modular or portable building.


Check out the modular range here.


Need more guidance?

For more on how we can help you, download our Specialist Coatings for Modular Buildings guide.

In this guide you will

  • Discover the five biggest challenges in effectively coating modular buildings
  • Unearth the key things to look for in a modular buildings coating partner
  • Learn what a high-quality modular building coating portfolio includes
  • See why you should consider partnering with Pronto Paints.