Sealant or gasket material

Sealant or gasket material

This topic has 6 replies, 6 voices, and was last updated 6 August 2021 at 22:35 by bernard towers.

Viewing 7 posts - 1 through 7 (of 7 total)

Author

Posts
6 August 2021 at 16:18 #28293
Anthony Knights
Participant
@anthonyknights16741
beam engine
Advert

6 August 2021 at 16:18 #557297
Anthony Knights
Participant
@anthonyknights16741
I have now got to the stage with Stewart Hart's beam engine to do a final assembly and test it on compressed air. I am asking the experts here what they would suggest to use on the joints that need to be gas tight. I have checked in the workshop and found tubes of both " Red and Golden Hermetite", also a tube of "Red Hylotyte" ( which I assume is a clone of the Hermetite ). I also have a tin of "Boss White" in my plumbing kit. Does anyone here have a preference, or would they suggest something else?
6 August 2021 at 16:43 #557300
Dave Halford
Participant
@davehalford22513
If I remember rightly Boss White was rated for steam plumbing
6 August 2021 at 17:35 #557302
noel shelley
Participant
@noelshelley55608
I would use blue hylomar and brown paper or for thicker gaskets cornflake box. Mainly as I have it ! Golden hermetite is from memory like the hylomar. Both are nonsetting so easy to part if the need arises ! Noel.
6 August 2021 at 18:34 #557314
Jim Nic
Participant
@jimnic
I run my engines on air without any seal between joints. I would suggest you also do this for the initial runnings so that if a strip down is required you don't have the problem of cleaning gasket gack off the faces. You may also be lucky and find that the engine doesn't leak air at the relatively low pessures you will hopefully need and you can leave it gasket free.

Jim
6 August 2021 at 18:46 #557315
JasonB
Moderator
@jasonb
Like Jim I test run all my engines without gaskets, piston rings/packing or gland packing. Once happy with how they run they get painted and if I feel like sealing surfaces which I don't always then I tend to use a liquid silicon gasket as it does not add any noticeable thickness to the joints and throw the alignment out. You could get away with DIY silicon or a small tube of auto gasket from the likes of Halfords or e-bay.

Although there is nothing to really leak out when air running you can find a bit of oil works it's way out of any slight gaps after a while.
6 August 2021 at 22:35 #557345
bernard towers
Participant
@bernardtowers37738
Jason please don’t use diy silicone it’s full of acid, use automotive gasket silicone it’s chemistry is different no corrosive elements.
Author

Posts

Viewing 7 posts - 1 through 7 (of 7 total)

Please log in to reply to this topic. Registering is free and easy using the links on the menu at the top of this page.

Code of Conduct

Latest Replies

Viewing 25 topics - 1 through 25 (of 25 total)

- Topic
- Voices
- Posts
- Last Post
- Precision tool storage
  Started by: Ian Owen NZ in: Workshop Tools and Tooling
- 1
- 1
- 17 May 2025 at 00:45
  Ian Owen NZ
- Herbert Junior surface grinder
  Started by: Pete. in: Manual machine tools
- 2
- 2
- 17 May 2025 at 00:10
  not done it yet
- All things Beaver Mill 1 2 … 7 8
  Started by: Robert James 3 in: Manual machine tools
- 39
- 198
- 16 May 2025 at 23:13
  Mark Rand
- Help and advice please
  Started by: acklam65 in: Beginners questions
- 4
- 4
- 16 May 2025 at 22:52
  John Haine
- Watchmakers Lathe Question
  Started by: Shaun Churchill in: General Questions
- 9
- 17
- 16 May 2025 at 21:42
  Dell
- A 5cc version of the 1.3cc Mills Diesel.
  Started by: KEITH BEAUMONT in: I/C Engines
- 5
- 11
- 16 May 2025 at 21:18
  half whit
- Retractable top slide or cross slide?
  Started by: Ian Owen NZ in: Workshop Tools and Tooling
- 9
- 13
- 16 May 2025 at 21:17
  Ian Owen NZ
- Faulty Warco 1630 Item 4085
  Started by: john fletcher 1 in: Manual machine tools
- 4
- 4
- 16 May 2025 at 19:42
  peak4
- Help Wire 3 Phase 2 Speed Motor
  Started by: Allan Day in: Electronics in the Workshop
- 11
- 17
- 16 May 2025 at 17:34
  DC31k
- The Honest John motoring website & forum will close in about 5 days.
  Started by: howardb in: The Tea Room
- 10
- 14
- 16 May 2025 at 11:40
  simondavies3
- Steel boiler for a 4″ Burrell DCC
  Started by: tinkerer in: Traction engines
- 3
- 4
- 16 May 2025 at 10:36
  JasonB
- Digital Archive – No Active Subscription Found
  Started by: Snax.Steam in: Website Questions, Comments, and Suggestions
- 3
- 4
- 16 May 2025 at 09:58
  Andrew Crow
- FreeCAD v1.0 tutorials 1 2
  Started by: Michael Gilligan in: CAD – Technical drawing & design
- 12
- 50
- 16 May 2025 at 06:27
  Speedy Builder5
- Good News! (Newton Abbott – 2026)
  Started by: Nigel Graham 2 in: Exhibitions, Shows and Club Events
- 2
- 2
- 16 May 2025 at 00:12
  Bazyle
- Serious Sun-Glass 1 2
  Started by: Michael Gilligan in: The Tea Room
- 17
- 48
- 15 May 2025 at 20:45
  Michael Gilligan
- New Control Box for Denford Triac
  Started by: Richard Evans 2 in: CNC machines, Home builds, Conversions, ELS, automation, software, etc tools
- 5
- 9
- 15 May 2025 at 18:32
  John Haine
- New member from sunny Northern Ireland
  Started by: tinkerer in: Introduce Yourself – New members start here!
- 2
- 2
- 15 May 2025 at 17:06
  Howard Lewis
- Help in/nr Hereford
  Started by: simonj34 in: Beginners questions
- 3
- 4
- 15 May 2025 at 16:44
  Howard Lewis
- One minute I am logged in, then the next logged out
  Started by: Michael Callaghan in: General Questions
- 2
- 2
- 15 May 2025 at 16:14
  JasonB
- Removing side tank hand pump
  Started by: Mark Salzedo 1 in: Beginners questions
- 4
- 9
- 15 May 2025 at 16:09
  Mark Salzedo 1
- Scam email 1 2
  Started by: Ian McVickers in: General Questions
- 21
- 35
- 15 May 2025 at 16:05
  old fool
- fly cutter bit
  Started by: aytact in: General Questions
- 8
- 9
- 15 May 2025 at 15:58
  Pete
- Old Radio Book
  Started by: old fool in: Books
- 5
- 6
- 15 May 2025 at 15:12
  old fool
- Alternative linisher
  Started by: Dalboy in: Manual machine tools
- 4
- 5
- 15 May 2025 at 15:00
  Dalboy
- ME&W printed not being delivered
  Started by: michael rietveld in: Model Engineer.
- 1
- 1
- 15 May 2025 at 14:09
  michael rietveld

Viewing 25 topics - 1 through 25 (of 25 total)

View full reply list.

Latest Issue

June 2025

Buy Latest/Back Issues

Newsletter Sign-up

Latest Replies