Pay attention to the time The farmer's fertilizer is slow, it should be applied early, usually applied once before the sowing; while the amount of chemical fertilizer is small, the effect is fast, generally should be applied about 7 days before the peak period of crop absorption and nutrition.
Pay attention to the method The compound fertilizer is better for the base fertilizer, and the urea is better for the top dressing. Farmyard manure should be combined with deep tillage into the soil tillage layer, or combined with ridges to buckle into the bottom of the ridge. Nitrogen fertilizer with farmyard manure, 30% as base fertilizer, 70% as top dressing, phosphate fertilizer and potash fertilizer as base fertilizer applied once.
Grasping the quantity of chemical fertilizer and farmyard manure application, the dosage is different according to the difference of crop and soil fertility. On the thin ground, the corn is planted, 4 cubic meters of farmhouse fertilizer per 667 square meters, 24 kg of urea, 13 kg of phosphate fertilizer or 13% of 3 13 kg of compound fertilizer; 3 cm of farmer's fertilizer for medium-fertilizer soil, 20 kg of urea or 12 kg of compound fertilizer of 15%; high-fertility soil for farmer's fertilizer 2.5 cubic meters, urea 15 kg
【Comment】 【Print this article】 【Close this page】 【Large, medium and small】

Thermoplastic polyolefin (TPO) waterproofing roll material adopt advanced polymer technology combined EPR (ethylene propylene rubber) together with polypropylene into thermoplastic polyolefin (TPO) synthetic resin as base material ,  adding antioxidants ,  anti-ager and softener  to  be made the  ne w-type waterproofing roll material.

1-2mm-TPO-

Performance Characteristics:

Anti-aging ,high tensile strength ,high  elongation ,moist  roofing can construction, exposed no need protective  layer, easy construction and non-pollution.  It  is  very fit to be the waterproofing layer of light energy-saving roofing.

Executive Standard:

GB27789-2011

Specification:

Length: 15-20m or other length

Width: 2- 3m

Thickness: 1.2-2.0mm 

Application:

light steel structure roofing ,  building underground waterproofing, used on  light  steel roofing ,  drinking water reservoirs, bathrooms ,  basements ,  tunnels ,  grain depot ,  subway ,  reservoirs and other waterproofing moisture-proof projects.

Technical datas

 

         Specification

   H

   L

   P

   G

GL

The resin thickness of Middle fabric, mm≥

-

           0.40

Maximum tension,N/cm â‰¥

-

200

250

-

200

Tension strength,Mpa≥

12

 

 

12

 

Maximum tension elongation,%≥

 

 

15

 

 

Fracture elongation,%≥

500

250

 

400

200

Heat treatment size change rate %≤

2.0

1.0

0.5

0.1

0.1

Low temperature bend

-40°C No crack

Water tightness

0.3Mpa,2h, No seepage

Attack resistance

0.5kg·m,No seepage

Static charge resistance

-

20kg ,No seepage

Seam strip strength ,N/mm≥

4.0 or Membranes break

3.0

Right-angle tear strength,N/mm≥

60

 

 

60

 

      Trapezoid tear strength N≥

-

300

450

 

350

Bibulous rate

(70°C 168h), %

After soaking≤

4.0

Air-cure later≥

-0.40

 

 

Heat aging

(115°C)

 

Time

672h

Appearance

No blister,flaw,delamination,coherence,hole

Tensile strength retention,%≥

90

Elongation rate of keeping,%≥

90

Low temperature bend

-40°C, No crack

 

 

Chemistry

resistance

Appearance

No blister,flaw,delamination,coherence,hole

Tensile strength retention,%≥

90

Elongation rate of keeping,%≥

90

Low-temperature bending

-40°C, No crack

 

Artificial weather accelerated aging

Time

1500hb

Appearance

No blister,flaw,delamination,coherence,hole

Tensile strength retention%≥

90

Elongation rate of keeping%≥

90

Low temperature bend

-40°C ,No crack



TPO Waterproofing Roll Material

Tpo Waterproofing Roll Material,Tpo Roofing Waterproof Membrane Material,Waterproof Membrane Material,Tpo Roof Waterproof Material

Shandong Tianhai New Materials Engineering Co., Ltd , https://www.chinatinhy.com

Posted on