| PERMACAST PERMACAST® is a unique process and material developed to satisfy the need for high quality repairs in manholes and similar structures and engineered for sealing, protecting and structurally reinforcing them in a safe and cost effective manner.
FIBERGLASS MANHOLE LINERS
 Re-Habilitate...Don't Replace...
Over a short period of time, brick and concrete manholes will deteriorate due to exposure to waste water gases such as Hydrogen-Sulfide. Decaying concrete manholes are in constant need of costly repairs. LFM has solved the problem of costly repairs with its fiberglass manhole liners. Our fiberglass liners are corrosion-free and are not affected by common waste water gases. Once a manhole has been rehabilitated with a fiberglass manhole liner from LFM, it will never again be subject to costly repair or replacement due to corrosion.
Experience...
Let us put our experience to work for you. LFM has been building quality fiberglass reinforced manholes and wet wells since 1982. We utilize the latest in chop and filament winding equipment, therefore providing our customers with the highest quality fiberglass products on the market today. Our production facility covers 83,000 square feet and is located on 35 acres near Giddings, Texas.
Quality Built Right In...
LFM incorporates a comprehensive in-plant testing and quality control program. This insures complete and consistent workmanship in all of our fiberglass products. Each manhole liner that we build is inspected and tested before it is released for shipping. Our testing procedures include wall thickness reports, raw material analysis and continuous chemical analysis reports. Individual testing reports are recorded and maintained at our office, and are available upon request.
 Available Diameters..
LFM's fiberglass manhole liners are available in diameters from 36" through 168" (14'). We recommend using a fiberglass manhole liner which is six inches smaller in diameter than the existing structure. Standard depths are available from 2' through 40'. Greater depths can be custom fabricated per engineer's specifications.
Identification Marks...
Our fiberglass manhole liners are each marked with our name and factory location. In addition each liner has its own serial number marked on both the inside and outside. The depth of each fiberglass manhole liner is located on the outside to help easily identify its length.
A.S.T.M. Certified...
Our fiberglass manhole liners meet or exceed all A.S.T.M. requirements for fiberglass manholes. LFM's fiberglass manhole liners are designed to withstand the rigid requirements of A.S.T.M. Specification D3753 for glass fiber-reinforced plastic (FRP) manholes. The A.S.T.M. certification tests were performed independently by Southwestern Laboratories of Houston, Texas. Below, you will find a summary of the independent test results.
Professional Delivery...
LFM maintains its own fleet of delivery trucks; this helps to lower delivery costs considerably. Our fiberglass manhole liners are light-weight and can be shipped via common carrier freight lines anywhere in the continental United States.
Strong & Lasting Construction...
Our fiberglass manhole liners are designed to meet or exceed all A.S.T.M. D3753 standard specifications. In addition to the A.S.T.M. standards, our fiberglass manhole liners meet H-20 load requirements. Our products are engineered to provide you with long and trouble-free service.
One-Piece Design...
The one piece design of LFM's fiberglass manhole liners makes installation economical and easy. Our fiberglass liners are light-weight which eliminates the need for heavy equipment on the job site. Installation is less time consuming because there is only one piece to install. In a short time, an old decaying manhole can be easily transformed into a newly lined fiberglass manhole.
Quality Assurance...
At LFM we stand behind the products we build. We offer a limited one year warranty on our fiberglass manhole liners. See the warranty section of our brochure for further information.
Installation Instructions...
1. Make manhole liner cut-outs
Prepare excavation around old manhole. Be sure excavation is properly shored for safety. Remove existing ring and cover and reducer section.
2. Set manhole liner
Lift the manhole liner by inserting a 4" x 4" timber into the opening at the top of the liner. Attach a rope or chain to the timber and lift with a backhoe or other lifting device. Set manhole liner into existing manhole. At this time, mark the contour of the existing bench area onto the fiberglass liner. Remove the liner and cut along the contour mark. Set the liner into the existing manhole in a concentric manner. Use a non-shrinking grout to seal the area between the bottom of the liner and the existing bench area. Fill area between the liner and the existing manhole using a concrete grout poured evenly in one foot lifts.
3. Bring to grade
Bring the manhole to final grade using brick or pre-cast concrete grade rings mortared in place. Replace the ring and cover. Backfill according to engineer's specifications using moderately compacted sand or crushed stone. In a short time and with minimal work involved, an old leaking concrete manhole has been transformed into a newly lined fiberglass manhole. |
