The Benron Ez-Tex Sprayall is what i'm buying next if I win a contract for 11 sinks. Seems to spray backer really nicely and sprays face coat much quicker than my EZY Deck.
I use a version of the mortar sprayer. It dumps material just about as quickly as you can load it. It is way faster than hand lay once pieces get to be a certain size. Hand is faster for small things like sinks and stuff. The backer is way faster once the scale moves up...like a bathtub or something like that. I personally think the compaction on large verticals is much better when spraying provided the lifts are fairly small. The air really drives the mud onto the wall. Every piece I spray has the ring of cast iron when you knock on it. Dunno why, but it does and it's only when I spray the backer. For verticals, I'd say it's way faster than 20%. For flats, maybe not even 20%. It really comes into its own with the tall verticals.
If you guys end up with that gun, I'd love to hear your feedback.
This is a post I put up a while ago that Tom of Fishtone replied to. He provided the info I was looking for but I already have a backer. I was looking for an all in one and I don't think its here yet. http://concretecountertops.ning.com/forum/topics/sprayers?xg_source...
Being able to spray up larger verticals / several moulds single-handedly is my main reason for wanting to use the gun. Will pay for itself in about 7 days I reckon : )
Anyone know up to what fibre % the Benron can handle? Wondered if you could begin hitting 5-6% to match that from using a concentric spray gun with chopper on it?
You'll never be able to hit 5 or 6 % with pre mix in my opinion . I've had close to 4% with some mixes but it gets to be quite a hay stack type of mix . I'd stick with 3% and add scrim if you want more strength. I have a larger peristaltic pump set for premix I use from time to time it can push most anything but over 4% the mix becomes stiff and not so usable . my 2 cents
That's what I thought too. I'm amazed even 3% sprays!