IFC Primer - for tapes etc

[Jenki]

I have read most if not all the ICF posts, and Primer is mentioned numerous times, but not a trade name or type.

my journey is underway, and want to get ready for the build. 

there will be several areas that I will need to stick something to the ICF.

1, Under cill / sills with EPDM tapes

2, airtight membrane from ceiling to walls

3, internal reveals for windows

 

What primer do I need, I was going to experiment with some SBR bond, but if someone has a recommendation for an all-round primer, I'll take that.

 

[Conor]

We had no bother sticking bitimous tapes or airtightness tapes directly to our EPS.

[SteamyTea]

Avoid anything that is PVC if your Lego blocks are polystyrene.

 

 

[ChrisJ]

I use Nudura primer for their peel & stick membrane very successfully and without trying it, it should work without issue on any similar type products on polystyrene 

[ChrisJ]

On 29/05/2023 at 08:47, Conor said:

We had no bother sticking bitimous tapes or airtightness tapes directly to our EPS.

Your EPS must have been extremely clean and no UV damage- which literally happens within days at this time of year 

[FM2015]

We use an EPS rasp and a leaf blower or handheld vacuum on each opening as required

Refina do a tungsten carbide rasp with the awesome name of TigerClaw.

[Matt540]

I’ve been using this for my air tightness tape around the windows and doors. 

https://www.ecologicalbuildingsystems.com/product/tescon-primer-rp

 

Really good stuff, was warned not to get the aerosol version as it could damage the EPS. I’ve just been painting this stuff on with an old brush 

[Nickfromwales]

On 02/06/2023 at 09:38, FM2015 said:

We use an EPS rasp and a leaf blower or handheld vacuum on each opening as required

Refina do a tungsten carbide rasp with the awesome name of TigerClaw.

Time for a username change, me thinks?  

[Jenki]

On 02/06/2023 at 09:38, FM2015 said:

We use an EPS rasp and a leaf blower or handheld vacuum on each opening as required

Refina do a tungsten carbide rasp with the awesome name of TigerClaw.

@FM2015 cant stretch to that TigerClaw rasp, but found a considerably cheaper knock off version that should get me through. - thanks for the info👍

[Nickfromwales]

TigerClaw

 

vs

 

Screwfix

 

2 hours ago, Jenki said:

found a considerably cheaper knock off version

Can you post a link please?

[Jenki]

On 06/07/2023 at 12:04, Nickfromwales said:

TigerClaw

 

vs

 

Screwfix

 

Can you post a link please?

I've not seen the Tiger Claw so would assume much superior to this, but I'm only doing this once😂 

https://www.amazon.co.uk/dp/B07K6MTSKT?ref_=cm_sw_r_apann_dp_ANBM4JX1D0QKZ60ZD3CT

 

The Screwfix link is more a k rend float? I'm hoping this will be smoother,my K rend float would destroy polystyrene.

[Jenki]

On 06/07/2023 at 12:04, Nickfromwales said:

TigerClaw

 

vs

 

Screwfix

 

Can you post a link please?

@Nickfromwales.

Turned up today. Impressed.

 

[Chanmenie]

I have one of those, works great 👍

[FM2015]

Not going to lie, the TigerClaw is the Rolls Royce of EPS rasps and if you use it for a living, well worth the expense.  The finish is beautifully fine whereas the alternatives, like those shown above require a lot more effort to achieve the same finish.  They can leave a more "open" finish.