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Most Recent Questions
Recent Question:
can this be used on a thermostat cover to instead of a gasket???
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Is this material suitable for forming seals/gaskets in drinking water systems?
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fuel tank sender unit
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Slight leak on cylinder head. Is this product likely to repair the leak?
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Diameter Size of Pipe
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View all questions > Motoring Q & A > Paints & Body Repairs Q & A > Head Gasket & Exhaust Repairs Q & A

Customer Questions & Answers for
Holts Holts Gun Gum Putty 200g

The Holts Gun Gum Putty Permanently repairs small holes and leaks in silencers and exhaust systems
Customer Questions & Answers:
4 Questions
 | 
10 Answers
Overall Rating:
4.714 out of 5
4.7
out of
5
Product Details

Questions & Answers for Holts Holts Gun Gum Putty 200g

Question
How long does Gun Gum take to properly harden
asked 4 years, 4 months ago
by
billybanjo
 - North Wales
on Holts Gun Gum Putty 200g
4 answers
Answers
answer 1
I'd reccomend Leaving it overnight, then the next morning, will be like new.
answered 2 months, 2 weeks ago
by
DevsT4
answer 2
Most people recommend leaving it overnight, running the engine at idling speed for 10 minutes or so after applying the fix will help it harden, but still leave it a good few hours before running the engine at too higher speed otherwise the pressure is likely to push the plug out.
Age Group: 35 - 44
Gender: Male
Attitude to Shopping: Quality Seeker - I'd rather spend a little extra on something if I know its going to last
Family: I'm Living with Partner/Spouse - With Children
Attitude to Car Maintenance: Enthusiast
How many cars: 1
Best Answer
answered 9 months ago
by
simon1976
 - Worthing,Sussex
answer 3
20 minutes, i used product and am very happy with outcome,
answered 3 years, 4 months ago
by
bri72
 - fareham
answer 4
In general this product takes about 24 hours to harden, however this is dependant on number of factors: 1. Environment (cold-wet [winter] versus warm-dry [summer]) 2. How much product is used by the consumer 3. Where on vehicle it is applied, etc.
Staff Answer
answered 4 years, 4 months ago
by
HalfordsWebTeam
Question
will this repair a cracked manifold
asked 5 years ago
by
mikki69
on Holts Gun Gum Putty 200g
3 answers
Answers
answer 1
For my car I put it on over night and as the exhaust got hotter when i drove the next day it was hard and fine
answered 10 months ago
by
Lummy1985
answer 2
Yes, but I don't know how long it will last.
Best Answer
answered 3 years, 2 months ago
by
aaaaaaab
answer 3
No, this is not suitable for your purpose.
Staff Answer
answered 5 years ago
by
HalfordsWebTeam
Question
Is this suitable to reseal a rear joint which is blowing?
asked 3 years, 8 months ago
by
JoeP92
 - Swindon
on Holts Gun Gum Putty 200g
2 answers
Answers
answer 1
Yes, smooth off the area effected, apply the putty, covering all of the area, smooth the putty with a damp cloth and leave overnight, your exhaust will be like new and no more blowing.
answered 2 months, 2 weeks ago
by
DevsT4
answer 2
This is designed to repair small holes and leaks in silencers and exhaust systems.
Staff Answer
answered 3 years, 8 months ago
by
HalfordsWebTeam
Question
can this withstand high temperatures of a 2 stroke engine?
asked 4 years, 10 months ago
by
Anonymous
on Holts Gun Gum Putty 200g
1 answer
Answers
answer 1
Holts Gun Gum Putty 200g is a Sodium Silicate which has a melting point of just over 1000C. This means that it should be able to cope with any temperatures produced by an engine.
Staff Answer
answered 4 years, 10 months ago
by
HalfordsWebTeam
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