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How to neaten expanding foam around pipe?

The gaps around these pipes have been filled with expanding foam. After sanding the foam back and cleaning it off the pipes, how can the area look better

What would be a suitable paint.
Are “sample pots” available in exterior paint and colour matched.

I presume interior paint is not an option.

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Comments

cos

I’m curious myself. Have a similar question

MitchellMc

Welcome to the Bunnings Workshop community @Glendav. It's sensational to have you join us, and many thanks for your question about neatening expanding foam.

It looks like the expanding foam might have been applied over a partially completed mortar fill, so removing the foam entirely and finishing the gap with mortar could be a neater and more durable solution. A properly smoothed mortar joint will blend seamlessly with the wall and provide a polished appearance around the pipe. However, if you prefer to keep the foam, painting it can enhance its look.

Start by sanding and shaping the foam for a smooth, even finish, then clean the surface thoroughly to remove any dust or residue. For painting, use a high-quality exterior paint to ensure durability and protection against the elements. While sample pots aren’t available in exterior paint, you can purchase a 1-litre can in your desired colour, which can also be useful for touch-ups in other areas.

Please let me know if you have any questions.

Mitchell

MitchellMc

Welcome to you as well, @cos

You might like to share an image of your situation with our helpful members so they can assist you further. Let me know if you need a hand uploading one.

Does your pipe also have expanding foam around it at the joint?

Mitchell

EdwinC

https://www.workshop.bunnings.com.au/discussion/comment/45122#Comment_45122

I haven't been able to find any photos of painted expanding foam to see what the end result looks like. Since the foam has air bubbles in it, won't sanding and painting over it still result in a dimpled look vs a smooth finish?

I am considering using expanding foam to seal between external brick wall and window frame (gap up to 5-6mm) and painting both the same colour.

Will it look even?

Thanks for any advice/feedback.

JacobZ

https://www.workshop.bunnings.com.au/discussion/comment/86494#Comment_86494

Hi @EdwinC,

A warm welcome to the Bunnings Workshop community and thank you for your question.

Expanding foam is not an external material and should not be used in situations where it is exposed to the elements such as below your window frame.

You would be much better off using a flexible exterior gap filler such as Selleys No More Gaps Exterior Gap Filler which is designed for this purpose.

You would likely benefit from pushing Moroday 15mm x 5m White Gap Filler Rod into the gap before applying your filler over the top. This will reduce the amount of gap filler you require and hold it at the front of the opening giving it a nice clean finish.

Let me know what you think and if you have any further questions, please don't hesitate to ask.

Jacob

EdwinC

https://www.workshop.bunnings.com.au/discussion/comment/108625#Comment_108625

Ah...i see. Thanks @JacobZ for the quick response.

Will definitely check out those products.

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