The Tirolessa metal hopper sprayer unit is designed to attach to a 5Hp or above air compressor*.
The unit weighs ~ 5 pounds and is comfortable to hold for most people. An assistant can fill the hopper while you spray, or the hopper can be dipped into a wheelbarrow or plaster drum to add material.
The hopper holds about a gallon of mix. The tool length is 36", and the hopper is approximately 9"W x 9.5"L x 7" D. The hopper is rinse-dipped in water periodically to keep holes clear (especially when using ferror cement and cement based mixes), and is sprayed with a heavy duty lubricant before use (LPS 3 product recommended, or WD 40.) A spiral cleaning tool is included.

Specifications:
* Designed for plaster and mortar mixtures (sand and grave) to 5/16" thickness.( sawdust, chopped paper and small fiber work well too.)
* 13.2 Lb. Hopper capacity
* 4.7 Lb. Thrower weight
* Operates at 50 psi.
* Easy clean
* Large wall surface areas can be plastered quickly.
* Galvanized tube arm with rubberized grip
*Steel hopper with brass fittings
* Excellent substitution for tedious trowel and wrist plastering.
Four air jets in the hopper blast the plaster though four portholes on the face of the unit. The operator stands in front of the surface to be plastered, grips the rubberized handle (or the hopper) with one hand, and squeezes the trigger with their other hand to deliver the plaster to the wall.
*(a 3.5 Hp two stage compressor will not work well)
The sprayer delivers a "peaked" rough coat that can be left to set as the scratch coat, or can be troweled. Additional layers can be sprayed and troweled depending on finish coat desired.
Carving brick images or "ashlaring" into a stone look, or impressing patterns into the soft plaster can alse be done. This tool beats the heck out of hand application of clay and lime plaster. The FUN of plastering is the troweled effects, so spraying on the plaster quickly and evenly allows more time for creative design.
MIXES TESTED: I tested a lime-sand plaster, lime-clay, clay-sawdust, clay-paper-lime 'crete, and variations, and if the mix is at the right wetness it covers beautifully and can be troweled or left like a "dashed" (peaked) surface as a base coat to give tooth to the next sprayed on layer. Great little tool.
Nolan Scheid uses the sprayer for ferrocement plasters. And Kaki & Doni Kiffemeyer (super adobe builders: Ok.Ok.Ok. Productions, Moab UT) use two sprayers at once to deliver lime plaster to walls quickly. I have also seen adobe-like retaining walls made with cinder blocks and a sprayed on plaster coat. A tinted cement plaster went over stacked cinder blocks to make essentially sculpted "adobe" looking walls.
Contact: E. Nolan Scheid, Managing Director
Msg. Tel: (541) 683-4167 or FAX to (541) 683-2115
Email: sales@mortarsprayer.com
or
nolan@mortarsprayer.com
Checks/MO made payable to: Pacific Asset Development
The tool price does not include shipping.
Shipment via US Priority MAIL: approx $22.00