Exterior Paint already failing

[opps]

The cracks are not down to the paint. The panels are moving as the door gets hotter or colder. A flexible MS polymer such as CT1 might accommodate the degree of movement.

CT1 Adhesive & Sealant

CT1 is the ultimate solution for sealing and bonding. It will successfully bond with almost any material without the need for additional fixings – this powerful sealant and construction adhesive won’t let you down.Completely odourless and highly flexible, CT1 white sealant always performs well...

www.toolstation.com

 

[JohnD]

The panelled door has too much paint on it.

Wood expands when damp and contracts when dry. For this reason, each panel will move slightly within it's frame. When made, the panels are a close sliding fit in the door.

In yours, excessive paint in the joints has tried to glue the panels into place. In most cases, the thick paint in the joint has cracked. But at least one panel has a vertical crack where it was unable to shrink and has pulled itself apart.

I clean out the paint in the joints with a triangular scraper, then smooth with the edge of folded sandpaper. When repainting, apply the thinnest possible paint in the joints. Do it in dry weather when the boards are fully contracted. Dark paint makes the inevitable gaps less noticeable.

 

[Koolpc]

Preparation, preparation, preparation....

 

[DIY67]

Sound advice folks. Thanks again.

 

[DIY67]

The cracks are not down to the paint. The panels are moving as the door gets hotter or colder. A flexible MS polymer such as CT1 might accommodate the degree of movement.

CT1 Adhesive & Sealant

CT1 is the ultimate solution for sealing and bonding. It will successfully bond with almost any material without the need for additional fixings – this powerful sealant and construction adhesive won’t let you down.Completely odourless and highly flexible, CT1 white sealant always performs well...

www.toolstation.com

Would this similar brand be good enough ? https://www.amazon.co.uk/dp/B0DGTLJX37?ref=emc_s_m_5_i_atc&th=1

 

[securespark]

Also, I see scuff marks on the door frame.

Could a hoof have taken the paint off?

 

[opps]

Would this similar brand be good enough ? https://www.amazon.co.uk/dp/B0DGTLJX37?ref=emc_s_m_5_i_atc&th=1

I have used OB1, it will be fine.

 

[DIY67]

Well, after using the advided sealant that doesn't shrink or expand, it has happened again after at first staying smooth. I give up!

 

[opps]

Sorry, when I recommended OB1, I thought you were talking about where the panel meets the door. The crack in the middle of the panel will, potentially, always be problematic. Faced with those kind of cracks, I normally use an epoxy resin such as the flexible 1 hour resin by Oxera

Rebuild Epoxy Woodfiller | Oxera Repair Products

Our extensive range of expoxy resin products can save the existing unit, saving the customer huge some of money whilst also minimising the impact on the environment, as often just 5% of the timber is affected, making it hugely wasteful to replace the whole unit.

www.oxerarepair.co.uk

That said, I will then cut through the moldings in the hope of freeing up the panel so that it can move (expand/contract). OB1 in that respect is better than regular caulk around the moldings. It allows a greater degree of movement.