Cold hands

[rhwestfall]

What that means is that warm gloves and booties isn't addressing the main problem (even though it may help somewhat with the symptoms), which is warming up your core.

and, really important, the head!

 

[stretchthepenn]

With dry gloves, are they not equalized with suit and therefore lofted? 'Have not learned to dive dry yet, so 'beg understanding.

Yes, dry gloves should be equalized with the rest of the drysuit. That's what the posts about diving without wristseals and placing tubes underneath wristseals are about.

The loft in a diver's drygloves is limited, though; it definitely helps keep the diver's hands warmer, but the loft isn't a cure-all for the cold.

 

[rjack321]

Yes, dry gloves should be equalized with the rest of the drysuit. That's what the posts about diving without wristseals and placing tubes underneath wristseals are about.

The loft in a diver's drygloves is limited, though; it definitely helps keep the diver's hands warmer, but the loft isn't a cure-all for the cold.

With dry gloves, are they not equalized with suit and therefore lofted? 'Have not learned to dive dry yet, so 'beg understanding.

Is doesnt matter if they are equalized or not.

Neoprene compresses at depth whether it's surrounded by 4ata water or 4ata suit air. That compression reduces the size of the air bubbles in the neoprene and their insulation value drops as you descend.

 

[stretchthepenn]

Yes, dry gloves should be equalized with the rest of the drysuit. That's what the posts about diving without wristseals and placing tubes underneath wristseals are about.

The loft in a diver's drygloves is limited, though; it definitely helps keep the diver's hands warmer, but the loft isn't a cure-all for the cold.

With dry gloves, are they not equalized with suit and therefore lofted? 'Have not learned to dive dry yet, so 'beg understanding.

Is doesnt matter if they are equalized or not.

Neoprene compresses at depth whether it's surrounded by 4ata water or 4ata suit air. That compression reduces the size of the air bubbles in the neoprene and their insulation value drops as you descend.

Um...I think we may be talking about entirely different things. It really does matter -- for multiple reasons -- if there's air transfer between a drysuit's main body and drygloves. And I don't know of any drygloves that are neoprene.

Did you intend to respond to @Endler's post?

 

[rjack321]

Um...I think we may be talking about entirely different things. It really does matter -- for multiple reasons -- if there's air transfer between a drysuit's main body and drygloves. And I don't know of any drygloves that are neoprene.

Did you intend to respond to @Endler's post?

You'd be incorrect, gas in your drysuit is at 4ata and compressing the insulation in those dry glove liners just as much as water will smush wetsuit gloves

 

[ChrisMBC]

You'd be incorrect, gas in your drysuit is at 4ata and compressing the insulation in those dry glove liners just as much as water will smush wetsuit gloves

I’m not sure about that. I agree that neoprene will compress, because it contains completely-sealed gas bubbles that compress with an increase in absolute pressure. But conventional insulation that relies on ‘loft’ (like Primaloft or fleece) doesn’t have sealed gas bubbles, so I don’t see why it would collapse.

 

[rjack321]

I’m not sure about that. I agree that neoprene will compress, because it contains completely-sealed gas bubbles that compress with an increase in absolute pressure. But conventional insulation that relies on ‘loft’ (like Primaloft or fleece) doesn’t have sealed gas bubbles, so I don’t see why it would collapse.

shrugs the neoprene bubbles are at 1ata inside. They collapse and are progressively less warm at depth.

Loft is the cure all. The only other thing that can "make" your hands warm is having the rest of your core so damn hot with active heating that your body is pumping crazy hot blood out to your extremities in an effort to get rid of it. Your thinly insulated hands will still be warm in that scenario

 

[Zef]

shrugs the neoprene bubbles are at 1ata inside. They collapse and are progressively less warm at depth.

Loft is the cure all. The only other thing that can "make" your hands warm is having the rest of your core so damn hot with active heating that your body is pumping crazy hot blood out to your extremities in an effort to get rid of it. Your thinly insulated hands will still be warm in that scenario

When you equalize your suit and gloves you are adding air at your regulator's intermediate pressure which is most likely higher higher than ambient pressure. This allows your suit and gloves to inflate. If you had neoprene gloves on your hands as a glove liner inside a dryglove, the neoprene would only be compressed before you added air and if your body position has your hands below your body when when diving horizontal trim, or arms down if diving vertical. The ability to add air your gloves is predicated by disrupting your wrist seals to allow warmer air to pass from your suit into the dryglove.

I believe the point of the recommendation to wear a neoprene glove is that if the dryglove were to leak, the neoprene would offer some continued insulation, even if it is a small amount, even when compressed in the no longer inflated/equalized dryglove compared to a wool or other fabric type glove liner.

-Z

 

[lexvil]

Basic reality, as you go under water in a dry suit squeeze happens and trapped air makes all attempt to stay on the surface or as close as possible. The no seals thing has good and bad points, raise you hand and nice warm air fills the glove (hopefully not enough to pop it off) but as soon as you lower your hand that warm air is on it way to the highest point, probably the back of you neck or your feet, depending on trim.

The point of the little air tubes or whatever between your wrist and the glove is to facilitate equalization in a controlled manner but as you hands return to the lower plane they will get squeezed again. Maintain loft as needed and use good liners.

 

[stretchthepenn]

You'd be incorrect, gas in your drysuit is at 4ata and compressing the insulation in those dry glove liners just as much as water will smush wetsuit gloves

Um, no. We are talking about different things. It seems you're referring specifically to neoprene undergloves. They're just plain gonna squish. Fluffy dryglove liners loft like drysuit undergarments.