Retrofitting 4 Locator Attachments to a Mandibular Full Denture

Dr. R. asks:

I am retrofitting 4 Locator attachments to a mandibular full denture to convert it into an overdenture. The problem I have is that the mandibular denture has a relatively narrow Bucco-Lingual width around the mandibular anterior area – right where I want to retrofit the attachments.

Can I just add pink acrylic to the Lingual of the denture where I need to make it wider to accommodate the attachments? Will this be strong enough? How much thickness of acrylic do I need around the attachments?
Thanks for any help.