Hi Guys
I like most of you that do a bit of home painting have encountered Acrylic Paint drying too quickly in hot weather,  in my most recent case (when doing a large interior window frame) coming to the end of the job and matching up the start with the finish to find the start paint has gone all sticky and stuffs up the finish.

I have had the same on large walls

There is a product to help


Floetrol Acrylic Paint Conditioner
Wet Edge extender for acrylics.
What does it do?

When added to paint, Floetrol gives a longer wet edge, increased coverage, extended spray gun life, easier flow and improved hiding. Floetrol maintains paint quality and does not evaporate.
How does it work?

The drying time of water-based paint or stain depends on the weather. In hot, windy or humid conditions paint dries too fast resulting in brush and lap marks. Water evaporates and increases chalking. Floetrol will reinforce the paint and make acrylics behave like oil based paint.
Where will it work?

Floetrol can be used in all acrylics, water-based paints and stains, water-based textured coatings and pebble finishes.
Use Floetrol when brushing

Floetrol improves every acrylic brush job because it:
• avoids paint build-up on brush
• avoids lap and brush marks
• stops paint pulling and dragging
• stops bristle separation
• retards chalking
• loads brush with 20% more paint
Use Floetrol when rolling

Floetrol will give a better job every time because it:
• reduces roller pressure on the surface to avoid paint build-up on edges of roller
• eliminates roller spatter
• does not leave roller marks
• provides a spray-like finish and loads more paint on roller
Use Floetrol when spraying

Floetrol is recommended by the world's leading spray equipment manufactureres because it:
• stops tip clogging and piston freeze-up on cup guns
• extends life of equipment
• improves spray pattern
• uses lower pressure
• assures better coverage
• makes clean-up easier
   
Floetrol lets me paint in hot weather as the drying time slows down. No brush marks either. John Winter
I have used Floetrol in paint for faux finishing. It allows effortless fine sanding to create the faux finish you desire. .

http://www.floodaustralia.net/products/paint_additives/floetrol.php

I have no personal connection with Floetrol and cannot be held responsible if you are a crap painter or use inferior paint or brushes..Redneck Inc.

Acrylic Enamel Water Based.

Easier to clean up.

I agree not as good a gloss as oil based but far easier to clean up.

Lazy Red

John Smith wrote on Jan 2^nd, 2015 at 4:32pm:


Yeah I know that!

It is easier to use and clean up is my point

Grrrr 

So what is the solution to oil based enamel drying too fast in hot weather?

The Topic!

Redmond Neck wrote on Jan 2^nd, 2015 at 6:38pm:


oil based? if you heat up your pot with enamel in a pot with warm water, it'll keep the enamel viscous, alternatively you can piss in it (seriously, thats what old timers used to do when paintshop was hours away) ...

Not sure how long it takes you to paint a window, but I've never been that slow that enamel drying was ever an issue. If you need to stop and are worried about it drying, stop on a joint. You can go back the next day and restart at the joint and any inconsistency will be hidden by the joint.

they also sell enamel thinners that won't water down your paint like adding turps will.

Have a look on the container - most will tell you not to paint if the temp is above 30°C or under 0°C.

While products like Flowtrol etc may help, I can't say as I haven't used them.

Redmond Neck wrote on Jan 2^nd, 2015 at 3:32pm:






NB ... Do NOT apply ANY acrylic at below 13 degrees - or it is likely to fall to that level, within 2 hours

John Smith wrote on Jan 2^nd, 2015 at 8:37pm:


First I tried spa marine varnish, which looked great at first but wore straight off. Now I am trying that pool paint with sandy bits in it for grip. I'll try the 2pac (epoxy?) next if that doesn't work.