Resealing "chainplates"

[TiggerToo]

After 23 or so years, some water is starting to make its way past Tigger's "chainplates" (I am not sure if this is the right term, but I am referring to the small ss plates that are on deck between the shrouds and the below decks connection to strong points.

An important maintenance job is now on the horizon. The plan is to unbolt the connections, clean up whatever crud is present, add new sealant, and tighten back the bolts/nuts. Should I consider anything else?

One question that I am not sure about is: what should I seal with? One of Sika's polyurethane adhesives? Or should I consider using a non-setting mastic like Arbomast? The point is that the sealant will not have any "structural" significance (i.e. no binding needed), just keeping the water out.

What do you think?

 

[Dunx]

I’ve had great success using a butyl glazing tape on the bottom of the chain plates and around deck fittings, cheap and easy to work with.

 

[Hacker]

+1 for butyl tape

 

[PabloPicasso]

Yes butyl tape. For all deck fittings. It remains flexible and never hardens. Can even be reused.

Sika is an adhesive as well as sealant which could make removal difficult if needs be.

 

[Never Grumble]

Butyl tape seems to be favoured these days although I have also seen articles proposing Sikaflex

You pay your money and take your choice.

 

[PabloPicasso]

Butyl tape seems to be favoured these days although I have also seen articles proposing Sikaflex

You pay your money and take your choice.

Sikafles needs conditions that are perfectly dry, and is an adhesive. Is that what you need? . The chain plates will, presumably, be heftily bolted through, so no need for it to be glued as well.

The flexibility in butyl tape allows for the inevitable movent in the join between chain plate and deck, whilst also stopping water entering. This, I have found, works well. Water seeping into this joint does/will cause issues down the line.

 

[Never Grumble]

Sikafles needs conditions that are perfectly dry, and is an adhesive. Is that what you need? . The chain plates will, presumably, be heftily bolted through, so no need for it to be glued as well.

The flexibility in butyl tape allows for the inevitable movent in the join between chain plate and deck, whilst also stopping water entering. This, I have found, works well. Water seeping into this joint does/will cause issues down the line.

As I say I have seen both used.

 

[Thistle]

I’ve had great success using a butyl glazing tape on the bottom of the chain plates and around deck fittings, cheap and easy to work with.

Mr Google offers a huge range of butyl tapes: any suggestions re makes to look for or avoid? Thanks.

 

[Dunx]

I ordered from an eBay supplier, I think they are all pretty much the same

 

[ghostlymoron]

I've got it from a caravan shop, cheap as chips and less messy than PU sealants.

 

[alahol2]

If you want a 'name' then Arboseal GZ comes recommended.

 

[Never Grumble]

Mr Google offers a huge range of butyl tapes: any suggestions re makes to look for or avoid? Thanks.

Adshead Ratcliffe Arboseal GZ Butyl Strip Tape Sealants Online -

 

[laika]

I took out the chain plates when the headlining was done. They were doubtless originally sealed with something sika-like and not hard to get out. When I put them back I used 291i. Butyl is the ichor of hell but I concede its utility with fittings I need to rebed semi-regularly. I don’t intend rebedding the chain plates any time soon, but if I do it’s not like they’re delicate fittings I can’t apply a bit of force to pull out.

 

[Minchsailor]

I have used black gutter sealant. Cheap as chips and is non setting.